# Spaced Repetition vs SharpPrep

The clearest difference is in-app purchases: SharpPrep at none against Spaced Repetition's 3. SharpPrep also leads on update cadence (every 5 days vs monthly) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Spaced Repetition sells 3 in-app purchases, starting at $1.99 per month. SharpPrep asks for nothing beyond the download.

Spaced Repetition ships an update monthly, SharpPrep every 5 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | Spaced Repetition | SharpPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/spaced-repetition-synapse/id6672094098/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 22 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SAMUEL PREMJI](https://appshunter.io/developer/1767673207) | [Varun Bora](https://appshunter.io/developer/1372317245) |

## What reviewers say

### Spaced Repetition

[App page](https://appshunter.io/ios/app/spaced-repetition-synapse/id6672094098)

This app simplifies revision planning with a personalized schedule and timely reminders. It offers a calendar view and customizable intervals, eliminating the need for manual flashcard creation. Focus on learning without the stress of organizing your study plan.

**Highlights:** Personalized revision plan creation, Timely revision reminders, Intuitive calendar visualization, Customizable revision intervals, No flashcard creation required

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Annual | $9.99 | per year |
| Synapse premium | $29.99 | one-time |


### SharpPrep

[App page](https://appshunter.io/ios/app/sharpprep/id6748724723)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spaced Repetition free?

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

### Is SharpPrep free?

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

### Do Spaced Repetition or SharpPrep have ads?

Neither Spaced Repetition nor SharpPrep shows ads.

### Which is updated more often, Spaced Repetition or SharpPrep?

Spaced Repetition ships an update monthly, and SharpPrep every 5 days. Most recently, Spaced Repetition was updated on October 9, 2026 and SharpPrep on October 9, 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.*