Comparison

Spirale vs DevProCo

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Spirale

Features
Read full description

Pair a black & white film and developer, pick a fixer and start developing. Spirale guides your sessions with clear timers, agitation cues, and reusable chemistry tracking. The data you need, organized around how development works β€” not around the database behind it. RECIPES. Your darkroom shelf. Spirale pairs each film and developer in one card, color-coded by packaging, so you spot them at a glance. Films, developers, fixers, all major brands are covered. β€’ Reusable developers show batch usage and volume right on the card. β€’ Long press on a recipe to rearrange or delete it. THE EDITOR. All the data, none of the noise. Fine-tune your development variables: target ISO, developer dilution, temperature compensation and agitation style for your chemistry. β€’ See the roll count, mixing date and expiry date for reusable chemistry. β€’ Tap the volume to see the dilution. β€’ Pick from official Ilford, Kodak and Agfa agitation styles. β€’ Add or remove optional steps. THE TIMER. Agitate with precision, leave nothing to chance. β€’ Arcs around the clockface and dots on the progress bar mark each agitation cycle. β€’ Sound, haptic, and text cues show what to do and when. β€’ Tap the seconds hand or the dial to change the timer’s appearance. THE PROCESS. Make it yours. Your own times, recorded as you develop β€” tracked, averaged, and refined. The longer you use Spirale, the more it reflects how you work. The datasheet is where you start. Where you end up is yours.

About

DevProCo

Features
Read full description

DevProCo is a precise development process timer for analog photographers β€” whether you're developing B&W film, color negative (C-41), slide film (E-6), or darkroom prints (RA-4). FEATURES β€’ Guided step-by-step development sessions with automatic agitation reminders β€’ Text-to-speech announces each step and agitation β€” keep your hands in the tank β€’ Hands-free voice control: say "next" to advance steps β€’ Automatic chemistry volume and dilution calculator β€’ Built-in process library with pre-configured recipes (Rodinal, DD-X, C-41, RA-4) β€’ Create and save your own custom processes β€’ Share processes with other DevProCo users via QR code β€’ Screen stays on during active sessions β€’ Supports English, German, Spanish and French

Screenshots

Spirale4 screens
DevProCo4 screens

Verdict

The call

The clearest difference is in-app purchases: Spirale at none against DevProCo's 1. DevProCo's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. DevProCo sells 1 one-off in-app purchase. Spirale asks for nothing beyond the download.

Scorecard2 real differences Β· 3 level
Spirale versus DevProCo: the parameters behind the verdict, then further details
ParameterSpiraleDevProCo
PriceFreeFree
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS26.016.0 β€” better
Further details β€” not scored
Size11 MB76 MB
Age rating4+4+
DeveloperBogdan DumitracheChristoph Kretschmer

In-app purchases

None

Spirale

No in-app purchases

1 purchases

DevProCo

One-time1
  • Premium$3.99

Questions

Is Spirale free?
Spirale is free to download, with no in-app purchases.
Is DevProCo free?
DevProCo is free to download, with in-app purchases available.
Do Spirale or DevProCo have ads?
Neither Spirale nor DevProCo shows ads.

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