back2book vs One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
back2book
Create a printable backup of your iPhone contacts. Easily generate a wallet-sized paper phone book from your stored numbers. Perfect for ensuring you always have important contacts accessible, even without your device.
- Paper backup of phone numbers
- Create wallet-sized phone book
- Simple and fast process
- Uses normal printer
- Backup all stored contacts
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This app lets you paper backup the phone numbers stored in your iPhone or iPad. If you ever lost your mobile or ran out of battery in front of a friends new house whose name is not written on the bell yet, you might have started writing little notes with important numbers and keep them in your wallet. Back2book lets you create a complete backup of your contacts – a wallet sized paper phone book. It takes less then five minutes and is really simple. All you need is a normal printer, scissors and a stapler.
One
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Your pocket-sized language companion. Instantly translate text, documents, and images with our all-in-one translation app. Simply scan any QR code to access translations in multiple languages. Create your own QR codes to share translated content easily. Whether you're traveling, studying, or working, our app has you covered.
Screenshots
Verdict
The clearest difference is in-app purchases: One at none against back2book's 1. One also leads on update cadence (daily vs every 8 months). back2book's advantage is ads (none vs shown). On price, device support and iOS requirement 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. back2book sells 1 one-off in-app purchase. One asks for nothing beyond the download.
back2book ships an update every 8 months, One daily. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.
| Parameter | back2book | One |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| Update frequency | Every 8 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | TinkaTinka | All About Housing LLC |
In-app purchases
back2book
- Full Version$0.99
One
No in-app purchases
