# SIM Card Status Checker vs ChangeUnits2

The clearest difference is price: SIM Card Status Checker at Free against ChangeUnits2's $0.99. SIM Card Status Checker also leads on ratings volume (912 vs 1). ChangeUnits2's advantage is in-app purchases (none vs 18) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

SIM Card Status Checker is free to download; ChangeUnits2 costs $0.99 up front. SIM Card Status Checker sells 18 one-off in-app purchases. ChangeUnits2 asks for nothing beyond the download.

ChangeUnits2 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SIM Card Status Checker has 912 ratings behind it against 1, so its average is the more settled of the two.

SIM Card Status Checker ships an update monthly, ChangeUnits2 every 4 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SIM Card Status Checker | ChangeUnits2 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (912 ratings)](https://appshunter.io/ios/app/sim-card-status-checker/id1570765076/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/changeunits2/id1661260714/reviews)** |
| Number of ratings | **912** | 1 |
| Positive reviews | 80.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 46 MB | 17 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rana Parulben](https://appshunter.io/developer/1570765078) | [Jack McCormack](https://appshunter.io/developer/1658121467) |

## What reviewers say

### SIM Card Status Checker

[App page](https://appshunter.io/ios/app/sim-card-status-checker/id1570765076)

This app provides detailed information about Apple iPhones, including IMEI status, carrier, SIM lock, iCloud status, and blacklist checks. It's useful for verifying a device's legitimacy before purchase or for understanding your current device's specifications.

**Highlights:** iPhone Carrier and SIMlock Checker, iCloud Status Checker, Find My iPhone Status, iPhone Black List Checker, Apple Serial Number Checker, iPhone Warranty Checker

**Features:** macOS Compatibility

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carrier Unlock Code Service. | $1.99 | one-time |
| Carrier Unlock Code Service. | $2.99 | one-time |
| Unlock Code | $3.00 | one-time |
| Carrier Unlock Code Service. | $3.99 | one-time |
| Carrier Unlock Code Service. | $4.99 | one-time |
| Unlock Code | $10.99 | one-time |
| Unlock Code | $12.99 | one-time |
| Remove Advertisement | $24.99 | one-time |
| Unlock Code | $56.00 | one-time |
| Unlock Code | $106.99 | one-time |
| Carrier Unlock Code Service | $174.99 | one-time |
| Carrier Unlock Code Service. | $179.99 | one-time |
| Carrier Unlock Code Service. | $199.99 | one-time |
| Carrier Unlock Code Service. | $209.99 | one-time |
| Carrier Unlock Code Service. | $219.99 | one-time |
| Carrier Unlock Code Service. | $239.99 | one-time |
| Carrier Unlock Code Service | $249.99 | one-time |
| Carrier Unlock Code Service. | $299.99 | one-time |

**What reviewers like**

- 🚀 Fast and easy to use
- 👍 Brilliant and necessary
- 🔓 Successful unlock
- 👍 Excellent
- 👍 Good app

**What reviewers complain about**

- 🐛 Doesn't work
- 🐛 Scam, doesn't unlock anything
- 🐛 App doesn't work
- 🐛 Para tuzağı (money trap)
- 🐛 Never received any email

**Reported bugs**

- Invalid IMEI number
- No response to inquiry

**Requested features**

- Support for Apple SIM
- Improve email delivery


### ChangeUnits2

[App page](https://appshunter.io/ios/app/changeunits2/id1661260714)

This powerful utility app offers lightning-fast and accurate unit conversions for a wide range of needs. It includes advanced math functions, currency exchange, time zone tracking, and even chemical equation balancing. Designed for professionals and everyday users alike, it works offline and remembers your last calculations.

**Highlights:** Extreme speed and accuracy, Offline functionality, Currency exchange converter, Global time zone tracking, Advanced math functions, Chemical equation balancing, Last 33 calculations remembered

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

**In-app purchases:** none


## Frequently asked questions

### Is SIM Card Status Checker free?

SIM Card Status Checker is free to download, with in-app purchases available.

### Is ChangeUnits2 free?

ChangeUnits2 costs $0.99, with no in-app purchases.

### Which has better reviews, SIM Card Status Checker or ChangeUnits2?

ChangeUnits2 is rated higher. SIM Card Status Checker averages 4.7 out of 5 from 912 ratings, while ChangeUnits2 averages 5.0 from 1 ratings.

### Do SIM Card Status Checker or ChangeUnits2 have ads?

SIM Card Status Checker shows ads; ChangeUnits2 does not.

### Which is updated more often, SIM Card Status Checker or ChangeUnits2?

SIM Card Status Checker ships an update monthly, and ChangeUnits2 every 4 weeks. Most recently, SIM Card Status Checker was updated on October 24, 2026 and ChangeUnits2 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.*