# Telegraph vs ExtraPower

The clearest difference is price: ExtraPower at Free against Telegraph's $1.99. ExtraPower also leads on review sentiment (50% vs 20%) and update cadence (every 5 weeks vs every 4 months). Telegraph's advantage is device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

ExtraPower is free to download; Telegraph costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Telegraph ships an update every 4 months, ExtraPower every 5 weeks. The most recent releases landed on September 17, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Telegraph | ExtraPower |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 20.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 70 MB | 18 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [俊 姜](https://appshunter.io/developer/974809005) | [宗辉 姜](https://appshunter.io/developer/1547364363) |

## What reviewers say

### Telegraph

[App page](https://appshunter.io/ios/app/telegraph-morse-code/id985978176)

Learn and practice Morse code through engaging games. Explore various themed scenes to test your knowledge and recall the historical significance of this communication system. A fun way to master the international Morse code alphabet.

**Highlights:** Morse code learning games, Themed play scenes, International Morse code chart, Historical communication practice, Fun and engaging gameplay

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ExtraPower

[App page](https://appshunter.io/ios/app/extrapower/id1570376618)

Monitor your LiFePO4 batteries wirelessly from your phone or tablet. Track cycle life, view state of charge, voltage, current, and temperature. Connects via Bluetooth BLE 4.0 or later.

**Highlights:** Wireless battery connection, Cycle life tracking, State of Charge (SOC) percentage, Voltage, current, and temperature display, Bluetooth BLE 4.0+ connectivity, Up to 5-meter connectivity distance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Telegraph free?

Telegraph costs $1.99, with no in-app purchases.

### Is ExtraPower free?

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

### Do Telegraph or ExtraPower have ads?

Neither Telegraph nor ExtraPower shows ads.

### Which is updated more often, Telegraph or ExtraPower?

Telegraph ships an update every 4 months, and ExtraPower every 5 weeks. Most recently, Telegraph was updated on September 17, 2026 and ExtraPower on June 1, 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.*