# Otter vs ProjectProof

The clearest difference is device support: ProjectProof at 3 against Otter's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Otter | ProjectProof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/otter-couple-calendar/id6446049782/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 14 MB | 36 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Enrico Castelli](https://appshunter.io/developer/1491683849) | [Techprog](https://appshunter.io/developer/1695141481) |

## What reviewers say

### Otter

[App page](https://appshunter.io/ios/app/otter-couple-calendar/id6446049782)

This app helps couples coordinate schedules and plan events together. It simplifies managing shared commitments and ensures both partners are aware of upcoming dates in real-time. Organize your shared life effortlessly.

**Highlights:** Organize weekends and dinners, Track commitments and dates, Real-time updates, Simple and customizable interface, Easy date management

**Features:** macOS Compatibility

**In-app purchases:** none


### ProjectProof

[App page](https://appshunter.io/ios/app/projectproof/id6757916759)

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

**In-app purchases:** none


## Frequently asked questions

### Is Otter free?

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

### Is ProjectProof free?

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

### Do Otter or ProjectProof have ads?

Neither Otter nor ProjectProof shows ads.

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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.*