# Critter vs Kept By

The clearest difference is in-app purchases: Critter at none against Kept By's 1. Critter also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (16.0 vs 18.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Kept By sells 1 one-off in-app purchase. Critter asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Critter against 5.0 for Kept By. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Critter ships an update every 2 weeks, Kept By every 2 months. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Critter | Kept By |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/critter-counter/id6763320337/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/kept-by/id6769453316/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 11 MB | 68 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHRISTOPHER RYAN SPURLOCK](https://appshunter.io/developer/1895261670) | [James Jackson](https://appshunter.io/developer/1896659717) |

## What reviewers say

### Critter

[App page](https://appshunter.io/ios/app/critter-counter/id6763320337)

Easily track and count any animals or objects you spot during your walks. The app logs the time, location, and quantity of each sighting, allowing you to review your discoveries on a map and in your walk history. It offers a simple, one-tap interface and an Apple Watch companion for convenient counting.

**Highlights:** Count anything with custom lists, One-tap logging for sightings, Sighting map with location data, Detailed walk history, Apple Watch companion app, Calm, dark-mode-friendly design, Guest mode for privacy

**Features:** Apple Watch app

**In-app purchases:** none


### Kept By

[App page](https://appshunter.io/ios/app/kept-by/id6769453316)

Digitally preserve cherished paper memories like cards, letters, and notes. Capture images, add details like sender and occasion, and easily organize, search, and revisit your personal keepsakes.

**Highlights:** Digitally preserve paper memories, Capture front, inside, and back images, Add sender, event, date, and notes, Organize and search personal collection, Browse saved keepsakes easily

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Keepsakes | $4.99 | one-time |


## Frequently asked questions

### Is Critter free?

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

### Is Kept By free?

Kept By is free to download, with in-app purchases available.

### Which has better reviews, Critter or Kept By?

Critter and Kept By are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do Critter or Kept By have ads?

Neither Critter nor Kept By shows ads.

### Which is updated more often, Critter or Kept By?

Critter ships an update every 2 weeks, and Kept By every 2 months. Most recently, Critter was updated on October 7, 2026 and Kept By on October 19, 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.*