Comparison

ProLab Film Developer vs Positive View

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

Head to head
About

ProLab Film Developer

Achieve consistent color film development at home with real-time adjustments for temperature and chemistry. This app eliminates guesswork by actively recalculating development times based on changing conditions, ensuring repeatable results without expensive equipment.

Highlights
  • Real-time time compensation
  • Chemistry tracking
  • Dynamic Time-Temperature Engine
  • Push processing support
  • Guided workflow
  • Supports major C-41 kits
Features
Read full description

No sous-vide. No guesswork. Just consistent colour film development. ProLab is a precision colour film development tool with real-time time compensation and chemistry tracking. ProLab Film Developer is the smarter way to develop colour film at home. Most home colour film development goes wrong for two reasons: temperature drift and tired chemicals. Every other app ignores that. ProLab Film Developer doesn’t. It’s the only app that actively adjusts your development time in real time, based on what’s actually happening, not what should be happening. Real-time time and temperature correction Built around a Dynamic Time-Temperature Engine, ProLab continuously recalculates your development time as conditions change. Temperature drops? Time is adjusted. Chemistry weakening? Compensated. No guessing. No assumptions. No expensive setup. No barriers. You don’t need a sous-vide. You don’t need a lab. Just a tank, a thermometer and a bowl. This is consistent, repeatable colour development without the cost or complexity. What makes it different • Real-time time compensation based on live temperature input • Chemistry tracking with exhaustion awareness • Intelligent adjustments based on actual usage, not theory • Built-in push processing for 1 and 2 stops • Clean, guided workflow from start to finish Supports major home C-41 kits, including Cinestill, Bellini, Rollei, Adox, Fuji and more. Built by a photographer, not a developer This was made to solve a real problem in home film processing. If your temperature moves and your timing doesn’t, you’re already off. Get it right. Every time.

About

Positive View

Transform your phone into a live viewer for photographic negatives. Instantly see positive images from color or black-and-white film in real time. Ideal for quickly previewing, selecting, and referencing your film scans.

Highlights
  • Live negative viewing (color & B&W)
  • Automatic color balancing
  • Brightness, contrast, warmth controls
  • Freeze, zoom, and pan frame
  • Save positive image to Photos
  • Calibration for illumination and lens
  • Use second device as light panel
Features
Read full description

Positive View turns your iPhone camera into a high quality live viewer for photographic negatives. Place a color or black-and-white film over an even light source, point the camera at it, and Positive View displays a positive image in real time. Use it to quickly see the images, select the best ones for scanning, or make a quick reference image. Features: • Live color and black-and-white negative viewing • Automatic color balancing, with a lock for consistent viewing • Brightness, contrast, and warmth controls • Freeze, zoom, and pan a frame for closer inspection • Save the current positive to Photos • Calibrate for even illumination and to counter lens falloff • Turn a second device into a plain white light panel Camera processing happens on your device. Positive View has no ads, accounts, analytics, or tracking. Images are saved only on your device and only when you tap Save. For best results, use an even, diffused light source with low flicker and keep the film flat.

Screenshots

ProLab Film Developer4 screens
Positive View3 screens

Verdict

The call

The clearest difference is price: Positive View at Free against ProLab Film Developer's $7.99. Positive View also leads on update cadence (fortnightly vs every 3 months). ProLab Film Developer's advantage is device support (3 vs 1). On rating, ratings volume, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Positive View is free to download; ProLab Film Developer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ProLab Film Developer against 5.0 for Positive View. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

UpkeepUpdate frequency

ProLab Film Developer ships an update every 3 months, Positive View fortnightly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
ProLab Film Developer versus Positive View: the parameters behind the verdict, then further details
ParameterProLab Film DeveloperPositive View
Price$7.99Free — better
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings33
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.0
Further details — not scored
Size189 MB2 MB
Age rating4+4+
DeveloperJames MaherMikhail Rybakov

Customer experience

ProLab Film Developer

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Positive View

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ProLab Film Developer

No in-app purchases

None

Positive View

No in-app purchases

Questions

Is ProLab Film Developer free?
ProLab Film Developer costs $7.99, with no in-app purchases.
Is Positive View free?
Positive View is free to download, with no in-app purchases.
Which has better reviews, ProLab Film Developer or Positive View?
ProLab Film Developer and Positive View are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do ProLab Film Developer or Positive View have ads?
Neither ProLab Film Developer nor Positive View shows ads.
Which is updated more often, ProLab Film Developer or Positive View?
ProLab Film Developer ships an update every 3 months, and Positive View fortnightly. Most recently, ProLab Film Developer was updated on October 5, 2026 and Positive View on October 1, 2026.

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