# FlickerSpec vs Bolt Torque Spec Calc

The clearest difference is price: FlickerSpec at Free against Bolt Torque Spec Calc's $4.99. Bolt Torque Spec Calc's advantage is in-app purchases (none vs 1) and chart position (#195 vs unranked). On update cadence, ads and device support there is nothing between them.

FlickerSpec is free to download; Bolt Torque Spec Calc costs $4.99 up front. FlickerSpec sells 1 one-off in-app purchase. Bolt Torque Spec Calc asks for nothing beyond the download.

FlickerSpec ships an update every 4 weeks, Bolt Torque Spec Calc every 3 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | FlickerSpec | Bolt Torque Spec Calc |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Best chart rank | — | **#195** |
| Size | 12 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) | [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858) |

## What reviewers say

### FlickerSpec

[App page](https://appshunter.io/ios/app/flickerspec-led-flicker-test/id6759629660)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlickerSpec Pro | $49.99 | one-time |


### Bolt Torque Spec Calc

[App page](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975)

**Currently charting:** #195 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is FlickerSpec free?

FlickerSpec is free to download, with in-app purchases available.

### Is Bolt Torque Spec Calc free?

Bolt Torque Spec Calc costs $4.99, with no in-app purchases.

### Do FlickerSpec or Bolt Torque Spec Calc have ads?

Neither FlickerSpec nor Bolt Torque Spec Calc shows ads.

### Which is updated more often, FlickerSpec or Bolt Torque Spec Calc?

FlickerSpec ships an update every 4 weeks, and Bolt Torque Spec Calc every 3 weeks. Most recently, FlickerSpec was updated on October 13, 2026 and Bolt Torque Spec Calc on September 29, 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.*