# TensorSpace vs EchoLing

The clearest difference is in-app purchases: EchoLing at none against TensorSpace's 2. EchoLing also leads on update cadence (every 2 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TensorSpace sells 2 one-off in-app purchases. EchoLing asks for nothing beyond the download.

TensorSpace ships an update every 4 months, EchoLing every 2 days. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | TensorSpace | EchoLing |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 129 MB | 32 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [TensorSpace Global Limited](https://appshunter.io/developer/1851410574) | [Xinyu Zhu](https://appshunter.io/developer/1895481236) |

## What reviewers say

### TensorSpace

[App page](https://appshunter.io/ios/app/tensorspace/id6755033060)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5M AI Tokens | $7.99 | one-time |
| Token Pack 10M | $12.99 | one-time |


### EchoLing

[App page](https://appshunter.io/ios/app/echoling-sentence-notebook/id6763769304)

This app helps you learn English by collecting expressions you encounter daily. It uses AI to create flashcards with engaging questions, perfect for quick reviews in your spare time. Learn naturally through low-pressure, continuous exposure without traditional memorization.

**Highlights:** AI-generated question cards, Widget and card reviews, Spaced repetition learning, Low-pressure learning environment, Collects real-life expressions, Builds long-term memory

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

**In-app purchases:** none


## Frequently asked questions

### Is TensorSpace free?

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

### Is EchoLing free?

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

### Do TensorSpace or EchoLing have ads?

Neither TensorSpace nor EchoLing shows ads.

### Which is updated more often, TensorSpace or EchoLing?

TensorSpace ships an update every 4 months, and EchoLing every 2 days. Most recently, TensorSpace was updated on October 21, 2026 and EchoLing on October 19, 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.*