# DataLeft — Data left, at a glance

> Data left, at a glance (iPhone/iPad app by Oh Hyeon Kwon.)

- Source: https://appshunter.io/ios/app/dataleft/id6790156499 (this page in markdown: same URL + `.md`)
- Developer: [Oh Hyeon Kwon](https://appshunter.io/developer/926648394)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: American English, Korean
- Released: 2026-07-21
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/dataleft/id6790156499/reviews.md

## What is DataLeft?

How much data is left? DataLeft answers on your Lock Screen — before you ever open the app.

A calm gauge shows what's left of your plan and how many days it needs to last. If you're burning through data faster than the days, you'll see it in one glance — and get a heads-up before it's a problem.

AT A GLANCE
• Remaining data as a dual-ring gauge: data left vs days left
• Widgets for Home Screen, Lock Screen, and StandBy
• Alerts at 50 / 80 / 95% — helpful, never alarming

BUILT FOR TRAVEL
• Add your travel eSIM before you fly
• Get a reminder to switch on arrival, and another before it expires
• Fixed-period plans with D-day countdown

PRIVATE BY DESIGN
• No subscription. No server. No VPN.
• Nothing leaves your device — there is nothing to collect
• Works entirely offline

DATALEFT PRO (one-time purchase)
• Multiple plans — home plan and travel eSIMs side by side
• Deep insights: 30-day trends, weekly rhythm, cellular vs WiFi
• Daily budget alerts
• Premium widgets

Note: iOS provides device-wide network counters to apps. DataLeft shows accurate totals for your device; per-app breakdowns are not possible for any third-party app.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| DataLeft Pro | $2.99 | one-time |



## Version history (last 3 releases)

### 1.0.2 — 2026-08-14

Fixed cellular usage being counted far higher than actual, which could drop your remaining data to zero. Past usage is recalculated from stored snapshots, so your history is corrected too.

### 1.0.1 — 2026-08-01

Fixed an issue where remaining data was not restored to your plan's full allowance on the monthly reset day. The "Already used" adjustment no longer carries over into the new period.

### 1.0 — 2026-07-21

No release notes.

## More apps by Oh Hyeon Kwon

- [Till - Every day counts](https://appshunter.io/ios/app/till-every-day-counts/id6760394450)
- [Reed - Text Reader](https://appshunter.io/ios/app/reed-text-reader/id6783131016)

All apps by Oh Hyeon Kwon: https://appshunter.io/developer/926648394

## Related topics

[cellular data usage](https://appshunter.io/ios/topics/cellular-data-usage)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*