# Strobekit — Flash Guide Number Calculator

> Flash Guide Number Calculator (iPhone/iPad app by JOSE ANGELO DE SILVA.)

- Source: https://appshunter.io/ios/app/strobekit/id6827517439 (this page in markdown: same URL + `.md`)
- Developer: [JOSE ANGELO DE SILVA](https://appshunter.io/developer/6827517441)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0 · 15 MB
- Languages: American English
- Released: 2026-11-07
- Data updated: 2026-11-07

## What is Strobekit?

Strobekit turns your flash's guide number into settings you can shoot with.

Pick what you want to know (aperture, flash distance, or your flash's real guide number), set ISO and power, and read the answer off an amber LCD built for quick glances on set. A distance chart shows every aperture and power level at once, and a "Why this works" line explains each result in plain language.

NEW TO FLASH?
Flash Basics walks you through guide numbers, stops, distance, manual vs TTL, shutter speed, bounce and fill flash in eight short lessons. Quick setups like "Close portrait" and "Group photo" give you a working starting point in one tap.

STROBEKIT PRO
One purchase unlocks every Pro tool, including new ones added in future updates:
• Flash Profiles: save your flashes with their real guide number at every zoom setting
• Bounce & Diffuser: correct exposure for ceiling bounce, umbrellas and softboxes
• Fill Flash: balance flash with daylight using the sunny-16 rule, with high-speed sync warnings

No accounts, no ads, no tracking. Your settings stay on your device.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Strobekit Pro | $6.99 | one-time |
| Flash Profiles | $2.99 | one-time |
| Bounce & Diffuser | $2.99 | one-time |
| Fill Flash | $2.99 | one-time |


## Is Strobekit safe?

Not enough ratings yet to assess Strobekit.

## Is Strobekit legit?

Strobekit has limited verification signals. The AppsHunter Legitimacy Score for Strobekit is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-07

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-07.*