Comparison

Trilight vs Pathly

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

Head to head
About

Trilight

Features
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The free version of Trivice for the calculation of any given triangle. The necessary parameters are: - Three sides or - Two sides and one angle or - One side and two angles The input is done completely without the keypad by using the graphical controllers on the edges and sides. The value of the active controller is displayed in the middle. The result is shown graphical as well as numeric. The commercial versions Trivice and Trivice HD can additionally calculate the area, height, perimeter, incircle and circumcircle. They also offer the input of fraction digits and a history to recall the most recent calculations.

About

Pathly

Features
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Want to check a sliced 3D print before you send it to the printer? Pathly opens a G-code file on your iPhone and shows the toolpath in 3D, layer by layer, with print time, filament and size at a glance. Tap Open a G-code File and pick a .gcode, .gco or .nc file from Files, or open one straight from another app. Pathly reads it on your iPhone and draws the path. โ€ข 3D TOOLPATH โ€” extrusion moves in color, travel moves in grey, over a soft ground plane. Pinch to zoom and drag to rotate. โ€ข LAYER SCRUBBER โ€” slide through the print to see it build up layer by layer, with the current layer number and Z height. โ€ข PRINT STATS โ€” estimated print time, filament used, model size (X ร— Y ร— Z), layer count, extrude and travel moves, total path length and maximum feed rate. โ€ข READS REAL SLICER OUTPUT โ€” G0/G1 moves and G2/G3 arcs, absolute or relative positioning and extrusion, millimeter or inch units, and files up to 80 MB. โ€ข SHARE / EXPORT โ€” send the G-code file on to another app, AirDrop or Files. Honest scope: Pathly is a viewer โ€” it doesn't slice, edit or send jobs to a printer. The time estimate uses path lengths and feed rates without acceleration, so your slicer's estimate may differ; filament volume assumes 1.75 mm filament. Binary G-code (.bgcode) isn't supported, and CNC or laser files without extrusion show every move as travel. Very dense files are thinned for display; the stats still count every move. Your files are opened on your iPhone only โ€” nothing is uploaded and no account is needed. Viewing is free and unlimited. The free version shares or exports 3 files; a one-time $4.99 purchase unlocks unlimited exports. No subscription, no ads. Questions: overlapmarr@gmail.com

Screenshots

Trilight2 screens
Pathly2 screens

Verdict

The call

The clearest difference is in-app purchases: Trilight at none against Pathly's 1. Trilight also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). Pathly's advantage is update cadence (every 2 days vs every 20 months). On price and ads 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. Pathly sells 1 one-off in-app purchase. Trilight asks for nothing beyond the download.

UpkeepUpdate frequency

Trilight ships an update every 20 months, Pathly every 2 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

Scorecard4 real differences ยท 2 level
Trilight versus Pathly: the parameters behind the verdict, then further details
ParameterTrilightPathly
PriceFreeFree
Update frequencyEvery 20 monthsEvery 2 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS13.0 โ€” better16.0
Further details โ€” not scored
Size5 MB1 MB
Age rating4+4+
DeveloperOliver HahnJhomar Maravillas

In-app purchases

None

Trilight

No in-app purchases

1 purchases

Pathly

One-time1
  • Unlock Unlimited$4.99

Questions

Is Trilight free?
Trilight is free to download, with no in-app purchases.
Is Pathly free?
Pathly is free to download, with in-app purchases available.
Do Trilight or Pathly have ads?
Neither Trilight nor Pathly shows ads.
Which is updated more often, Trilight or Pathly?
Trilight ships an update every 20 months, and Pathly every 2 days. Most recently, Trilight was updated on October 18, 2026 and Pathly on October 7, 2026.

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