Terms of Service

Version 1.7 · Last updated 1 November 2026

These are the rules for using NailMind. I have tried to write them the way I would explain them to you across a nail table, because terms nobody can read protect nobody.

1. Who you are dealing with

NailMind is run by Minh Pham, a sole proprietor. I work as a nail technician in Vacaville, California; my legal home is Arkansas. There is no company, no office and no staff — one person builds it and answers the email. You can reach me at support@nailmind.app.

These terms apply when you use NailMind, whether or not you make an account. If you do not agree with them, please do not use the service. What I collect and why is in the Privacy Policy, which goes with these terms.

2. Who can use it

You must be at least 13 years old to use NailMind, and at least 18 to buy credits. If you are between 13 and 18, you may use the free features with a parent or guardian's permission, but you may not make a purchase. An account needs a 10-digit North American (+1) phone number, as used in the US and Canada.

Without an account you get one free design in each browser (and at most one a day from the same network and browser), drawn by a lighter model, with no more of my reference photos than a member's design (one to three for everyone at the closest setting). Signing in brings a welcome credit (one today) and the full model.

3. Your account

Your account is a phone number. There is no password. That keeps signing in fast. Once text codes are switched on, it will also mean that anyone who can read texts sent to your number could reach your account, so please treat your number as the key it is.

On a shared phone or tablet, sign out when you are done (💎 → Sign out); the sign-in key then leaves that browser. If you lose a phone that was signed in, email me and I will sign your account out of every device; you then sign back in with a one-time code from me.

One person, one account. Please do not make extra accounts to collect more welcome credits: every design costs me real money at Google.

4. What a credit is

One credit makes one design. A design is currently two pictures of the same set, drawn from your description, the shape, length and difficulty you picked, and any photos you attach. The number of pictures per design is a setting I may change; a credit always buys one design at the number in use when you tap Generate, and each tap of Generate or Generate again spends one credit. A design made with photos you attach, or painted onto a photo of your own hand, costs the same one credit, and a guest's free design can use photos too.

If part of a set fails to generate — one picture comes back instead of two — the credit goes back to your balance automatically and you keep whatever did arrive. If nothing comes back, the credit comes back too, on its own. One case the app cannot catch: if you close it or lose signal while a design is drawing, the credit can be spent with nothing on your screen. Email me; I will check my design log and put it back.

Credits are not money, not a gift card, and not stored value. You cannot cash them out, transfer them to another person, or use them anywhere but NailMind.

Credits you paid for never expire. Free credits — the welcome credit and any I give you as a gift — are never refundable, and I may take them back if an account is being used abusively.

5. Prices and paying

Current prices:

• First-pack deal — currently 8 credits for $3.99, once per account: only before any other purchase or hand-added credits, and only until 24 hours after your first design. The paywall shows the exact offer and a countdown while it lasts.
• 10 credits — $4.99
• 25 credits — $9.99
• 60 credits — $19.99

All prices are in US dollars. Online payments are handled by Stripe. Your card details go to Stripe and never touch NailMind's servers — I never see your full card number. Stripe also asks for your email, to send the receipt, and a billing address; I use the state in it only to work out sales tax. In person, at the Dream Nails & Spa front desk in Vacaville, I can add credits to your number for cash or card at the same prices; while text codes are off, sign in on your phone first, because credits added to a number that has never signed in can only be reached with a sign-in code from me.

The price shown at checkout is what your card is charged. If you are outside the United States, your bank may add its own foreign-transaction or currency-conversion fee, and depending on where you live, local sales tax or VAT may not be included in the price shown. Those charges are between you and your bank or your tax authority; I cannot see them or refund them.

I may change prices at any time. A change never affects credits you already bought.

6. Refunds

I would always rather refund you than have you feel stuck. Email support@nailmind.app with the phone number on the account and what happened.

The rule, so there are no surprises:

• A pack you have not touched is always refundable, in full: back to the card you paid with, or in person at the front desk for a pack bought there.
• A pack you have started is refunded for the credits you have not used, at the price you paid per credit: the pack's price divided by its credits, times the credits left on your account that came from that pack. Credits pool, so I count the oldest pack as used first: refunding an older pack never touches the credits a newer pack added. Used credits are final: those pictures were generated, and paid for on my side, the moment they were drawn. Free credits are never refundable (section 4).
• Refunds go one purchase at a time, and each purchase can be refunded once. The money goes back the way it came: to the card through Stripe for an online purchase, in cash or to your card at the front desk for a purchase made there. I cannot send it anywhere else.
• If the app failed you (a design that never arrived, a blank result), that is not a refund question: the credit comes back on its own, or I put it back by hand when you email me (section 4). When something was my fault, I may refund more than this rule says, never less.
• Card refunds have a time limit that comes from the card networks, not from me, roughly six months after the purchase. After that, the money cannot be sent back to the original card. If you are outside that window, email me anyway and I will find a fair answer.

If you are in the EU or UK, you have a statutory 14-day right to cancel a distance purchase. By buying credits and using one immediately, you are asking for the service to start straight away and you accept that the right to cancel is lost for credits you have already spent; the unused ones are refunded as above.

7. What you may and may not ask for, in words or in photos

Please do not use NailMind to generate:

• anything sexual, hateful, violent, or illegal;
• images of a real, identifiable person without their permission;
• anything designed to copy a specific artist's or brand's protected work in order to pass it off as theirs.

The same goes for the photos you add, and there is one more rule for them: you must have the right to use any photo you add to NailMind, whether next to a request or in My Work. Your own hand, your own nails, your own work, or a photo whose owner has told you it is fine — all good. Someone else's photo from Instagram or Pinterest is theirs: ask them first, or describe what you like in words instead. Photos of a client's hands need that client's OK, and do not add a photo that shows another person's face or anything private about them. By attaching a photo to a request you confirm you may use it this way, and you let me send it to Google to make that one design: first for a one-line description (not a photo of your own hand), then with each picture of the set. I do not store it; my design log keeps only which finger it was for. I cannot check where a photo came from, so this one is on you; if I learn that a photo broke these rules, I may close the account that used it.

Do not try to break, overload, or reverse-engineer the service, and do not resell access to it. If an account is used this way I may take away its credits or close it. If I close an account for abuse, I will still refund what you paid for the credits you had not used, by hand through Stripe.

Your description and any photos you attach are sent to Google to make the images, and Google applies its own safety filters. Sometimes a perfectly innocent request gets blocked by them. That is not a judgement about you, and if it costs you a credit, that credit comes back on its own. The app will not tell you a filter stopped it; it just asks you to try again.

8. Who owns the designs

The designs you generate are yours. Use them personally, show them to your nail tech, post them, print them, use them for your salon's marketing — all fine, no extra licence needed, no royalty. A design made from a photo you attached, or painted onto a photo of your own hand, is yours in the same way, as far as you had the right to use that photo.

Two honest limits:

• Under current US law, images made purely by AI do not get copyright protection. That means I cannot promise the design is exclusively yours, and neither you nor I could stop someone else using a similar one.
• Someone else typing a similar description will get a similar design. There is no exclusivity built into the product.

The designs lean on my private reference library and, except when the closest setting copies one of my photos, my craft notes for how the nails are made. Depending on the setting I run, I ask the AI either for a new design in the spirit of the photos, or, at its closest setting, to work from the design in one of my reference photos on a new hand, with the changes you asked for, in one of three versions I choose between: reproduced as closely as it can together with the look of that photo (its light, background and framing); reproduced as closely as it can in my studio's own photograph (its usual hand, surface and light); or, also in my studio's own photograph, keeping that photo's colours, finishes, kinds of nail art and gems and its level of work, but with its accent nails moved to other fingers, its painted art redrawn in the same style and its small gems placed differently, so your design should be recognisably that photo's set in a new arrangement rather than a nail-for-nail copy (a plain set may come out almost the same). On a photo of your own hand, your photo's light and background stay in every version (see section 10). All three versions count as copying one of my photos wherever these terms or the privacy page say so. It copies a photo only when one shares a word with your description beyond a colour (or, when your description names only colours, one of those colours) and your own photos leave it a nail; otherwise your request runs as the next setting down and gets a new design. In every case a design can come close to a photo in my library, and I cannot promise yours is unlike anyone else's. Some of the photos in my library are other artists' work I collected as references, so a design copied or rearranged from one is yours to use only as far as that design is free to use; do not present it as your own original work. You get no rights in the library or the notes.

Signed in, every design you make is saved to your account automatically, as a smaller copy, so the app can show it to you; I keep your newest 60 pictures (30 designs at two pictures each) and 200 My Work photos, and older ones are deleted with their files. For the full-size picture, tap Save to my phone. I do not sell your designs, publish them, or use them to advertise NailMind without asking you first.

9. How your descriptions and feedback improve designs

NailMind gets better by learning what works, and that learning comes from what you type and what you tap. Plainly:

• Your description is kept for 90 days in a design log, with the shape, length and difficulty you picked, which of my reference photos were used and, when you are signed in, any 👍 or 👎 you tapped on the result, so I can see what the AI does well and badly. Then the description is erased from the log (the first 140 characters also stay with each saved picture in your account until that picture goes).
• A 👍 or 👎 (saving a design to your phone counts as a 👍 unless you already voted) adds to or takes from the score of the reference photos behind that design. Once a photo has three votes, the engine uses that score to choose between photos that fit a request equally well, for everyone; my own votes count five times. Those score changes stay with my photos after your vote is unlinked or your account is deleted, with nothing that links them to you.
• Signed in, your 👍s build a style on your account — a short list of words such as “almond · nude · chrome” that the AI can lean toward a little. It is yours to see, switch off, reset or delete in the app, and I tell the AI that what you type wins over it.
• Short notes about my craft, written by Google's text model from my reference library (never from anything of yours), ride along with every design while I have them switched on (not when the closest setting copies one of my photos), so the results look like real, well-made nails. They only guide how the nails are made; what you ask for and the photos you attach come first.

By using NailMind you let me keep and use your descriptions and votes this way, and only this way. None of it is sold to anyone, and I never train an AI model on your data. Google receives your request to make your images; its own API terms govern what it does with it. The Privacy Policy has the details, how long each thing is kept, and how to delete it.

10. What I promise, and what I do not

NailMind is provided as is. I work hard on it, but I cannot promise:

• that an image will match what you pictured — AI does not work that way;
• that a photo you attach comes out exactly. The AI copies that photo's design onto the finger you chose as best it can, adapted to the shape and length you picked and with a finish that matches the rest of the set; sometimes a finger comes out wrong, two photos blend, or a pattern drifts. Check the result before you book, and tell your tech what you actually want;
• that a design on a photo of your own hand leaves the rest of your photo untouched. The AI redraws the whole picture: it is told to keep your hand, pose and background as they are, but details can change and the framing can shift a little, and the nails are the AI's idea of the design, not a photo of a finished set;
• that a design marked Difficult, or one copied from a photo with 3D work at the closest setting whatever you picked, can be done in an ordinary appointment. Such sets can include sculpted 3D work and charms, which take a skilled tech longer and cost more;
• that your style is always right. Once a style has three liked sets, the AI leans toward it a little where your words leave room, and one design in each set goes a different way on purpose unless you attached photos (when the closest setting copies one of my photos, the style stays out); you can switch it off, reset it or delete it in the app;
• that a design is achievable on your nails, at your length, by your tech, at any particular price. The app aims for salon-realistic results, but your nail technician's judgement always beats the picture;
• that the service is available without interruption. It depends on Google, Stripe, my database host (Supabase) and my web host (Hostinger), and any of them can have a bad day.

Nothing here takes away rights you have under the consumer law where you live.

11. If something goes wrong

If NailMind causes you a loss, the most I can owe you is what you paid me in the 12 months before it happened — or $50, whichever is greater. I am not liable for indirect losses like lost profits or lost bookings.

This is not me trying to escape responsibility for a bad charge. Billing problems get fixed and refunded. This clause is about the difference between a mistake and a lawsuit.

12. Closing your account

You can close your account at any time — email support@nailmind.app from any address and tell me the phone number on it. Because the number alone is not a secret, I will confirm it is really you before deleting anything.

I may close an account that is being used to break these terms. If I close yours and you had paid credits left, I will refund what you paid for them, by hand through Stripe.

13. If NailMind shuts down

If I ever stop running NailMind, I will give at least 30 days notice at nailmind.app and refund what you paid for unused credits, by hand through Stripe, wherever the card networks still allow it. Please download any designs you want to keep — they will not outlive the service.

14. Changes to these terms

I may update these terms. The version number and date at the top always tell you which one is current. If a change materially affects what you have already bought, I will say so on the site rather than change it quietly.

15. Which law applies

These terms are governed by the laws of the State of California, USA, where I work, and any dispute belongs in the state or federal courts for Solano County, California. If you are a consumer somewhere else, this does not take away the protections your local law gives you or your right to bring a claim where you live.

Notice for California residents. Under California Civil Code section 1789.3 you may contact the Complaint Assistance Unit of the Division of Consumer Services of the California Department of Consumer Affairs in writing at 1625 North Market Blvd., Suite N 112, Sacramento, CA 95834, or by telephone at (800) 952-5210 or (916) 445-1254. NailMind is provided by Minh Pham (section 1); the service and its prices are described in sections 4 and 5, and you can reach me at support@nailmind.app.

16. Getting in touch

One address, and a person reads it: support@nailmind.app.