Developer Box for Film vs SmartLab35
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Developer Box for Film
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This app contains various tools and counters that are useful when developing black and white film. It can be used with most film developer tanks, some adjustments have made to make it fit with the Lab-box from ars-imago. Neither this tool nor the creator of it are affiliated with ars-imago or the Lab-box in anyway.
SmartLab35
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With the innovative photo enlarger, you can create prints from your film negatives in a completely new way. This is possible for colour and black and white photos. In black and white mode, you can set an exposure time of up to 999 seconds. You can set the intensity of the enlarger to up to -4.0 f-stops. For multi-grade paper, you can select the gradation from 00.0 to 5.0. Use the function buttons to control the enlarger. Use the FOCUS light to adjust the sharpness of your image. Use the SAFE light to insert the paper. Start and pause the exposure with the centre button. In colour mode, you can set an exposure time of up to 999 seconds. You can control the colour gradation of your image by setting the intensity of the individual colour channels. In the options menu, you can choose between CMY and RGB colour systems. Control the enlarger with the function buttons. You can use the FOCUS light to adjust the sharpness of your image. Start and pause the exposure with the centre button.
Screenshots
Verdict
The clearest difference is in-app purchases: SmartLab35 at none against Developer Box for Film's 1. SmartLab35 also leads on update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Developer Box for Film sells 1 one-off in-app purchase. SmartLab35 asks for nothing beyond the download.
Developer Box for Film ships an update every 3 months, SmartLab35 every 5 weeks. The most recent releases landed on September 24, 2026 and October 10, 2026 respectively.
| Parameter | Developer Box for Film | SmartLab35 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 16.2 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | zlent solutions ou | SANTIAGO FRANCISCO RAMIREZ SONNTAG |
In-app purchases
Developer Box for Film
- Donation$1.99
SmartLab35
No in-app purchases
Questions
Is Developer Box for Film free?
Is SmartLab35 free?
Do Developer Box for Film or SmartLab35 have ads?
Which is updated more often, Developer Box for Film or SmartLab35?
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