# AI MEMO vs Parallel

The clearest difference is iOS requirement: AI MEMO at 13.0 against Parallel's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AI MEMO sells 4 one-off in-app purchases and Parallel sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AI MEMO ships an update every 5 days, Parallel every 6 days. The most recent releases landed on October 27, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | AI MEMO | Parallel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | — | Free |
| Size | 75 MB | 16 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Zhen Yi Chuang Xiang Technology Co. LTD](https://appshunter.io/developer/1629372828) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### AI MEMO

[App page](https://appshunter.io/ios/app/ai-memo/id6736560813)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package 1-100 minutes | $5.99 | one-time |
| Package 2-200 minutes | $9.99 | one-time |
| 套餐3-500分钟 | $19.99 | one-time |
| Package 4-1000 minutes | $29.99 | one-time |


### Parallel

[App page](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258)

Perform multiple calculations simultaneously with a drag-and-drop interface. Features a scientific calculator, currency and crypto converter, and history saving with optional privacy locks. Customize with themes and fonts.

**Highlights:** Run 2, 3, or 4 calculations side-by-side, Drag and drop calculation arrangement, Scientific calculator mode, Currency and crypto converter, Save calculation history with notes, Face ID/passcode lock for privacy, Home screen widget and Quick Menu access

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parallel Pro | $2.99 | one-time |


## Frequently asked questions

### Is AI MEMO free?

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

### Is Parallel free?

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

### Do AI MEMO or Parallel have ads?

Neither AI MEMO nor Parallel shows ads.

### Which is updated more often, AI MEMO or Parallel?

AI MEMO ships an update every 5 days, and Parallel every 6 days. Most recently, AI MEMO was updated on October 27, 2026 and Parallel on November 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.*