# Frog Otto vs Contacts Backup

The clearest difference is in-app purchases: Frog Otto at none against Contacts Backup's 5. Frog Otto also leads on rating (5.0 vs 4.5) and update cadence (every 3 weeks vs every 2 months). Contacts Backup's advantage is ratings volume (62 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Contacts Backup sells 5 in-app purchases, starting at $3.99 per month. Frog Otto asks for nothing beyond the download.

Frog Otto holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Contacts Backup has 62 ratings behind it against 1, so its average is the more settled of the two.

Frog Otto ships an update every 3 weeks, Contacts Backup every 2 months. The most recent releases landed on October 14, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Frog Otto | Contacts Backup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frog-otto/id1468989742/reviews)** | [4.5 (62 ratings)](https://appshunter.io/ios/app/contacts-backup-easy-export/id1611893112/reviews) |
| Number of ratings | 1 | **62** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 17 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [克俭 左](https://appshunter.io/developer/1449795321) | [Sunshine Software Labs](https://appshunter.io/developer/1788219451) |

## What reviewers say

### Frog Otto

[App page](https://appshunter.io/ios/app/frog-otto/id1468989742)

Control a biped robot using a Bluetooth 4.0 connection. This application allows for a variety of actions to be performed by the robot through its interface.

**Highlights:** Bluetooth 4.0 connectivity, Control biped robot actions, Variety of button controls, Robot movement customization

**Features:** macOS Compatibility

**In-app purchases:** none


### Contacts Backup

[App page](https://appshunter.io/ios/app/contacts-backup-easy-export/id1611893112)

Easily back up, restore, and manage your phone's contacts without a computer. Send backups via email as VCF files, remove duplicates, and transfer contacts between devices. Offers offline backup and an easy restore process.

**Highlights:** Offline contact backup, Easy contact restore, Duplicate contact removal, Transfer contacts between devices, Backup as VCF (VCard), Backup history, View recently added contacts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium Monthly | $3.99 | per month |
| 3 Days Free Trial Weekly VIP | $4.99 | per 7 days |
| Annual Limited Offer VIP | $19.99 | per year |
| Annual VIP | $29.99 | per year |
| Get Premium One Time Purchase | $99.99 | one-time |


## Frequently asked questions

### Is Frog Otto free?

Frog Otto is free to download, with no in-app purchases.

### Is Contacts Backup free?

Contacts Backup is free to download, with in-app purchases available.

### Which has better reviews, Frog Otto or Contacts Backup?

Frog Otto is rated higher. Frog Otto averages 5.0 out of 5 from 1 ratings, while Contacts Backup averages 4.5 from 62 ratings.

### Do Frog Otto or Contacts Backup have ads?

Neither Frog Otto nor Contacts Backup shows ads.

### Which is updated more often, Frog Otto or Contacts Backup?

Frog Otto ships an update every 3 weeks, and Contacts Backup every 2 months. Most recently, Frog Otto was updated on October 14, 2026 and Contacts Backup on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*