# Retainly vs Aliner

The clearest difference is update cadence: Retainly at weekly against Aliner's every 3 months. Retainly also leads on iOS requirement (16.4 vs 18.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Retainly sells 1 one-off in-app purchase and Aliner sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Retainly ships an update weekly, Aliner every 3 months. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Retainly | Aliner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Size | 64 MB | 16 MB |
| Requires iOS | **16.4** | 18.1 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Glenn Francis](https://appshunter.io/developer/1875693789) | [Bogdan Nikishin](https://appshunter.io/developer/1735946582) |

## What reviewers say

### Retainly

[App page](https://appshunter.io/ios/app/retainly-retainer-tracker/id6773165727)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.99 | one-time |


### Aliner

[App page](https://appshunter.io/ios/app/aliner-aligner-tracker/id6779657332)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aliner+ Monthly | $2.99 | per month |
| Aliner+ Yearly | $19.99 | per year |
| Aliner+ Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Retainly free?

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

### Is Aliner free?

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

### Do Retainly or Aliner have ads?

Neither Retainly nor Aliner shows ads.

### Which is updated more often, Retainly or Aliner?

Retainly ships an update weekly, and Aliner every 3 months. Most recently, Retainly was updated on October 15, 2026 and Aliner on October 6, 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.*