Comparison

Trichromatic vs JPEG XL Toolbox

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

Head to head
About

Trichromatic

This app captures three distinct monochrome images using red, green, and blue filters, then merges them into a single creative photograph. Users can adjust various image parameters and share their unique creations.

Highlights
  • Capture RGB monochrome photos
  • Combine into one image
  • Adjust intervals between shots
  • Zoom and reframe options
  • Enable flash
  • Adjust brightness, contrast, saturation, sharpness
  • Save and share final image
Features
Read full description

Trichromatic takes three separate monochrome photos (one red, one green, and one blue) and combines them into one image. Achieve creative effects: - different intervals - zoom in or out - enable flash - reframe between shots Adjust brightness, contrast, saturation and sharpness of the final image and share it or save it in your photo album.

About

JPEG XL Toolbox

This app converts various image formats, including ProRAW DNG, HEIF, and JPEG, to JPEG XL (JXL). It offers lossless and lossy compression options, preserves metadata and 16-bit depth, and supports batch conversions. The app also maintains HDR display effects.

Highlights
  • ProRAW DNG to JXL conversion
  • Lossless and lossy compression
  • Metadata and 16-bit depth preservation
  • HDR display effect support
  • Batch conversion
  • HEIF and JPEG to JXL conversion
Features
Read full description

This application offers various JPEG XL (JXL) functionalities. Supports: * ProRAW DNG -> DNG - Lossless compression, about 1/2 of the original size - Lossy compression, about 1/6 of the original size * ProRAW DNG -> JXL - Lossy conversion, about 1/7 of the original size * DNG -> JXL - Lossy conversion, about 1/7 of the original size * HEIF -> JXL - Lossy conversion * JPEG -> JXL - Lossless conversion Features: * Keeps the internal metadata * Preserves 16-bit depth * Preserves HDR display effects in iOS Photos App * Batch conversion capabilities === CHNAGELOG === ### version 0.3.2 * Bumps libjxl to v0.10.2 * Adjusts settings view ### version 0.3.1 * Improves processing speed significantly * Adds lossless mode for ProRAW compression * Uses 7 as the default effort ### version 0.3.0 * Adds ProRAW direct compression ### version 0.2.1 * Settings page adjustment * Some UI improvements ### version 0.2.0 * Adds Pro version purchase * Adds several ProRAW parameters in settings for Pro version * Adds decoding speed in settings * Low memory mode now allows devices with 4GB RAM to convert 48M ProRAW ### version 0.1.2 * Uses lossless encoding for JPEG automatically * Adds Modular mode support * Adds Progressive mode support * Adds Colorspace support * Keeps HDR effect when converting from ProRAW ### version 0.1.1 * Adds support for ProRAW to lossy JPEG XL conversion * Adds Batch conversion * Keeps DNG Metadata in JXL * Adds quality and effort in settings

Screenshots

Trichromatic4 screens
JPEG XL Toolbox3 screens

Verdict

The call

The clearest difference is monetization model: JPEG XL Toolbox at free against Trichromatic's free with in-app purchases. JPEG XL Toolbox also leads on ratings volume (4 vs 1). Trichromatic's advantage is update cadence (every 6 days vs monthly) and rating (5.0 vs 4.8). On price, review sentiment, 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

Both are free to download. Trichromatic sells 1 one-off in-app purchase and JPEG XL Toolbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Trichromatic holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Trichromatic ships an update every 6 days, JPEG XL Toolbox monthly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
Trichromatic versus JPEG XL Toolbox: the parameters behind the verdict, then further details
ParameterTrichromaticJPEG XL Toolbox
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better
Update frequencyEvery 6 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size14 MB5 MB
Age rating4+4+
DeveloperChristian LobachSUIKA LTD

Customer experience

Trichromatic

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

JPEG XL Toolbox

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Trichromatic

One-time1
  • Remove Watermark$1.99
1 purchases

JPEG XL Toolbox

One-time1
  • JPEG XL Toolbox Pro$4.99

Questions

Is Trichromatic free?
Trichromatic is free to download, with in-app purchases available.
Is JPEG XL Toolbox free?
JPEG XL Toolbox is free to download, with in-app purchases available.
Which has better reviews, Trichromatic or JPEG XL Toolbox?
Trichromatic is rated higher. Trichromatic averages 5.0 out of 5 from 1 ratings, while JPEG XL Toolbox averages 4.8 from 4 ratings.
Do Trichromatic or JPEG XL Toolbox have ads?
Neither Trichromatic nor JPEG XL Toolbox shows ads.
Which is updated more often, Trichromatic or JPEG XL Toolbox?
Trichromatic ships an update every 6 days, and JPEG XL Toolbox monthly. Most recently, Trichromatic was updated on October 7, 2026 and JPEG XL Toolbox on October 12, 2026.

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