Comparison

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.

Head to head
About

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.

About

SmartLab35

Features
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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

Developer Box for Film4 screens
SmartLab354 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Developer Box for Film sells 1 one-off in-app purchase. SmartLab35 asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 4 level
Developer Box for Film versus SmartLab35: the parameters behind the verdict, then further details
ParameterDeveloper Box for FilmSmartLab35
PriceFreeFree
Update frequencyEvery 3 monthsEvery 5 weeks โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.216.0 โ€” better
Further details โ€” not scored
Size4 MB23 MB
Age rating4+4+
Developerzlent solutions ouSANTIAGO FRANCISCO RAMIREZ SONNTAG

In-app purchases

1 purchases

Developer Box for Film

One-time1
  • Donation$1.99
None

SmartLab35

No in-app purchases

Questions

Is Developer Box for Film free?
Developer Box for Film is free to download, with in-app purchases available.
Is SmartLab35 free?
SmartLab35 is free to download, with no in-app purchases.
Do Developer Box for Film or SmartLab35 have ads?
Neither Developer Box for Film nor SmartLab35 shows ads.
Which is updated more often, Developer Box for Film or SmartLab35?
Developer Box for Film ships an update every 3 months, and SmartLab35 every 5 weeks. Most recently, Developer Box for Film was updated on September 24, 2026 and SmartLab35 on October 10, 2026.

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