Photo Vault Lock vs Only Once
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Vault Lock
Securely hide your private photos and videos in a password-protected vault. Features include biometric access, intruder detection with photo capture, and decoy albums for enhanced privacy. Your data stays on your device.
- Password-protected vault
- Biometric authentication (Face ID/Touch ID)
- Intruder detection with photo capture
- Decoy vault with secondary PIN
- Unlimited album organization
- Private browsing
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KeepSecure lets you keep private photos and videos in a vault protected by a four-digit PIN. Organize your media in albums. A separate decoy vault with another PIN can show a different collection. Imported photos and videos are stored locally on your device. You can add up to 10 items for free; Premium removes this limit. Manage your private albums in one place.
Only Once
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Only Once is the vault for your most private photos: you see them once, then they lock… or maybe not, if you like breaking the rules. The deal is simple: open an album, enjoy it once, and it's gone. Leave or take a screenshot? Locked instantly. Photos live only inside the app, encrypted, never in your camera roll — what happens on the trip stays on the trip. • Unlimited albums for every trip or night out • Single-view rule: one look, that's it • Screenshot protection: breaking the rule isn't free • Blurred in the app switcher — no peeking from there • Film-style slideshow, end credits included • Photos stay private on your device, never in the cloud Feel like breaking the rules? • One More Time — reopen an album and watch it again • Export to Photos — keep them forever, if you just can't let go No account, no cloud, no snooping. Just your memories, only once. (Or as many times as you like, for a price.)
Screenshots
Verdict
The clearest difference is iOS requirement: Photo Vault Lock at 16.0 against Only Once's 18.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Photo Vault Lock sells 2 in-app purchases, starting at $0.99 per 7 days and Only Once sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Photo Vault Lock | Only Once |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 16 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Onur Ugur | Salvatore Boemia |
In-app purchases
Photo Vault Lock
- Weekly Subscription3 Days trial$0.997 Days
- Yearly Subscription$3.991 Year
Only Once
- Espresso$0.99
- Cappuccino$2.99
- One More Time$3.99
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- Breakfast$3.99
- Export to Photos$8.99
- Lunch$8.99








