back2book vs Watto
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.
Watto
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- Hourly prices for EPEX SPOT AT and DE - Shows you the best times to charge - Calculates the real price based on your fee structure - Alerts you when the price drops below a set limit - See historical data like average price per week and best weekday
Screenshots
Verdict
The clearest difference is update cadence: Watto at every 2 months against back2book's every 8 months. back2book's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, ads and in-app purchases 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 and Watto sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
back2book ships an update every 8 months, Watto every 2 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.
| Parameter | back2book | Watto |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | TinkaTinka | Erik Aigner |
In-app purchases
back2book
- Full Version$0.99
Watto
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$3.99
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- Extra Large Tip$8.99
Questions
Is back2book free?
Is Watto free?
Do back2book or Watto have ads?
Which is updated more often, back2book or Watto?
Other comparisons
