# Memo Sticky vs ReadSync

The clearest difference is in-app purchases: Memo Sticky at none against ReadSync's 1. Memo Sticky also leads on iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ReadSync sells 1 one-off in-app purchase. Memo Sticky asks for nothing beyond the download.

Memo Sticky ships an update every 4 weeks, ReadSync every 2 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Memo Sticky | ReadSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/memo-sticky/id1508032147/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 100 MB | 4 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Dongjie Zhang](https://appshunter.io/developer/1504778443) | [Alper Albayrak](https://appshunter.io/developer/993200227) |

## What reviewers say

### Memo Sticky

[App page](https://appshunter.io/ios/app/memo-sticky/id1508032147)

This digital notepad allows for effortless thought capture and organization. It offers voice-to-text, document scanning, and secure authentication for a seamless note-taking experience.

**Highlights:** Digital sticky notes, Voice-to-text note creation, Document scanning, Face ID/Touch ID authentication, iOS Widget support, Colorful designs

**Features:** Vision Pro support

**In-app purchases:** none


### ReadSync

[App page](https://appshunter.io/ios/app/readsync-pdf-reader/id6761561640)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $19.99 | one-time |


## Frequently asked questions

### Is Memo Sticky free?

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

### Is ReadSync free?

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

### Do Memo Sticky or ReadSync have ads?

Neither Memo Sticky nor ReadSync shows ads.

### Which is updated more often, Memo Sticky or ReadSync?

Memo Sticky ships an update every 4 weeks, and ReadSync every 2 months. Most recently, Memo Sticky was updated on October 7, 2026 and ReadSync on October 8, 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.*