Rollback vs Inbox4
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Rollback
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Shoot together. Open tomorrow. One roll. A few friends. No preview, no retakes ā and nobody sees a single photo until the roll is full and opens the next day. Then you open it together. HOW IT WORKS ⢠Start a roll ā 12, 24 or 36 shots. ⢠Fill it together ā invite up to 6 friends with one link. Everyone shoots into the same roll. ⢠It opens 6ā48 hours later. You'll get a notification when it's ready. ⢠Tap the roll and watch the photos appear one by one. WHY IT FEELS DIFFERENT ⢠No preview means you stay in the moment instead of checking the screen. ⢠No retakes means the photos are real, not curated. ⢠The wait makes the opening better. Rediscover moments you'd already forgotten. MORE ⢠Gift a roll ā send a finished roll to someone as a one-of-a-kind present. ⢠Solo rolls too ā the same ritual, just you. ⢠Guest mode ā try a 12-shot roll with no sign-up. ⢠Free to start. Buy more rolls when you need them.
Inbox4
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Inbox4 turns your phone into a 4-cut photo booth. ⢠Live background swap ā the camera removes your background in real time and drops you onto any scene. ⢠Famous landmark backgrounds ā Eiffel Tower, Taj Mahal, Santorini, Mount Fuji and more. ⢠Gradient backgrounds and life-4-cut style frames. ⢠Upload your own custom backgrounds ā keep as many as you like. ⢠Front or back camera, real shutter effect, 3-2-1 countdown. ⢠Save the finished strip to your Photos instantly ā no QR codes. Shoot, frame, save. That's it.
Screenshots
Verdict
The clearest difference is ads: Rollback at none against Inbox4's shown. Rollback also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rollback ships an update every 10 days, Inbox4 every 6 days. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.
| Parameter | Rollback | Inbox4 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 6 days ā better |
| Ads | No ā better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 13.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 108 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | sanghoon shin | Wonkyoung Seo |
In-app purchases
Rollback
No in-app purchases
Inbox4
No in-app purchases









