# MemSurf vs ARC

The clearest difference is in-app purchases: ARC at none against MemSurf's 7. ARC also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. MemSurf sells 7 in-app purchases, starting at $9.99 per month. ARC asks for nothing beyond the download.

MemSurf ships an update every 8 days, ARC every 10 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | MemSurf | ARC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/memsurf-adaptive-learning/id6745132314/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 237 MB | 0 MB |
| Requires iOS | 26 | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sehajroop Singh](https://appshunter.io/developer/1810928916) | [Blackbelt Labs](https://appshunter.io/developer/1372610100) |

## What reviewers say

### MemSurf

[App page](https://appshunter.io/ios/app/memsurf-adaptive-learning/id6745132314)

This app transforms your collected notes into personalized lessons and daily exercises to enhance knowledge retention. It adapts to your learning speed and goals, helping you build long-term understanding and recall.

**Highlights:** Bespoke lessons from your notes, Short daily exercises, Science-based spaced repetition, Personalized learning goals, Sprint and deadline modes, Habit-building streaks

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $95.99 | per year |
| Tiny Boost | $0.99 | one-time |
| AI Credits Small Boost | $2.99 | one-time |
| Purchase Gems | $4.99 | one-time |
| AI Credits Medium Boost | $6.99 | one-time |
| AI Credits Heavy Boost | $12.99 | one-time |


### ARC

[App page](https://appshunter.io/ios/app/arc-agi/id6748441637)

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

**In-app purchases:** none


## Frequently asked questions

### Is MemSurf free?

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

### Is ARC free?

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

### Do MemSurf or ARC have ads?

MemSurf shows ads; ARC does not.

### Which is updated more often, MemSurf or ARC?

MemSurf ships an update every 8 days, and ARC every 10 days. Most recently, MemSurf was updated on October 30, 2026 and ARC on October 30, 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.*