# iVerify Enterprise vs String Tension Calc

The clearest difference is in-app purchases: iVerify Enterprise at none against String Tension Calc's 4. iVerify Enterprise also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. String Tension Calc sells 4 in-app purchases, starting at $2.99 per 7 days. iVerify Enterprise asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 5, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | iVerify Enterprise | String Tension Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/iverify-enterprise/id6677005195/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 68 MB | 44 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [iVerify](https://appshunter.io/developer/1700333884) | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) |

## What reviewers say

### iVerify Enterprise

[App page](https://appshunter.io/ios/app/iverify-enterprise/id6677005195)

This app provides enterprise-grade mobile device security, protecting against threats and identifying compromises. It enables advanced threat hunting through log uploads and secures DNS integrations. The app also supports conditional access controls and offers protection guides for digital safety.

**Highlights:** Comprehensive mobile device security, Indicator of compromise detection, Diagnostic log uploads for forensic analysis, Secure DNS-over-HTTPS integration, Conditional access control, Digital protection guides

**Features:** Safari Extension

**In-app purchases:** none


### String Tension Calc

[App page](https://appshunter.io/ios/app/string-tension-calc/id6792709631)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |
| Premium | $3.99 | per month |
| Premium | $5.99 | per year |
| Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is iVerify Enterprise free?

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

### Is String Tension Calc free?

String Tension Calc is free to download, with in-app purchases available.

### Do iVerify Enterprise or String Tension Calc have ads?

Neither iVerify Enterprise nor String Tension Calc shows ads.

### Which is updated more often, iVerify Enterprise or String Tension Calc?

iVerify Enterprise ships an update every 3 weeks, and String Tension Calc every 3 weeks. Most recently, iVerify Enterprise was updated on October 5, 2026 and String Tension Calc on September 28, 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.*