# 節電Battery Life for iPhone vs S3Crypt

The clearest difference is review sentiment: S3Crypt at 100% against 節電Battery Life for iPhone's 48%. S3Crypt also leads on rating (5.0 vs 4.5) and ads (none vs shown). 節電Battery Life for iPhone's advantage is price (Free vs $0.99) and update cadence (every 3 months vs every 8 months). On in-app purchases and device support there is nothing between them.

節電Battery Life for iPhone is free to download; S3Crypt costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

S3Crypt holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 節電Battery Life for iPhone has 20 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 48% of 節電Battery Life for iPhone's written reviews are positive against 100% of S3Crypt's.

節電Battery Life for iPhone ships an update every 3 months, S3Crypt every 8 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 節電Battery Life for iPhone | S3Crypt |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.5 (20 ratings)](https://appshunter.io/ios/app/battery-life-for-iphone/id1451019238/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/s3crypt/id1609324228/reviews)** |
| Number of ratings | **20** | 4 |
| Positive reviews | 48.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | **Ad-supported** | Paid |
| Size | 48 MB | 2 MB |
| Requires iOS | **13.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [mirai sato](https://appshunter.io/developer/1282286456) | [Brian McAlister](https://appshunter.io/developer/1609324230) |

## What reviewers say

### 節電Battery Life for iPhone

[App page](https://appshunter.io/ios/app/battery-life-for-iphone/id1451019238)

Monitor your iPhone's battery percentage, estimate remaining usage time for apps like games and YouTube, and track your monthly and daily data traffic. Also, check your device's storage capacity.

**Highlights:** Battery percentage display, Estimated app usage time, Data traffic volume check, Storage capacity confirmation, Simple and easy-to-read design

**Features:** macOS Compatibility

**In-app purchases:** none


### S3Crypt

[App page](https://appshunter.io/ios/app/s3crypt/id1609324228)

This app generates secure, unique passwords based on a master key and a unique key for each site. You only need to remember these two pieces of information to create and access your passwords, without needing a separate password manager.

**Highlights:** Generates secure, unique passwords, Uses a master key and unique key, No password storage, Passwords recreated with same keys, Case-sensitive key input, Copy password to clipboard

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 節電Battery Life for iPhone free?

節電Battery Life for iPhone is free to download, with no in-app purchases.

### Is S3Crypt free?

S3Crypt costs $0.99, with no in-app purchases.

### Which has better reviews, 節電Battery Life for iPhone or S3Crypt?

S3Crypt is rated higher. 節電Battery Life for iPhone averages 4.5 out of 5 from 20 ratings, while S3Crypt averages 5.0 from 4 ratings.

### Do 節電Battery Life for iPhone or S3Crypt have ads?

節電Battery Life for iPhone shows ads; S3Crypt does not.

### Which is updated more often, 節電Battery Life for iPhone or S3Crypt?

節電Battery Life for iPhone ships an update every 3 months, and S3Crypt every 8 months. Most recently, 節電Battery Life for iPhone was updated on November 2, 2026 and S3Crypt on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*