# iDev Tango vs Lockeigo

iDev Tango and Lockeigo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iDev Tango | Lockeigo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 22 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [shohei yukawa](https://appshunter.io/developer/1825580540) | [yohei ueda](https://appshunter.io/developer/1881263178) |

## What reviewers say

### iDev Tango

[App page](https://appshunter.io/ios/app/idev-tango/id6757414016)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lockeigo

[App page](https://appshunter.io/ios/app/lockeigo/id6792405907)

Enhance your English vocabulary by learning new expressions directly from your iPhone's lock screen. Create custom flashcards, organize them into folders, and receive personalized review reminders. Unlock advanced features and customization options with a subscription.

**Highlights:** Create custom English flashcards, Organize vocabulary into folders, Display cards in Live Activities and widgets, Personalized review reminders, Customizable themes and fonts, Search words, meanings, and examples

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

**In-app purchases:** none


## Frequently asked questions

### Is iDev Tango free?

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

### Is Lockeigo free?

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

### Do iDev Tango or Lockeigo have ads?

Both iDev Tango and Lockeigo show ads.

### Which is updated more often, iDev Tango or Lockeigo?

iDev Tango ships an update every 2 days, and Lockeigo every 2 days. Most recently, iDev Tango was updated on October 25, 2026 and Lockeigo on October 24, 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.*