Comparison

Solid Engineer vs ISD Studio 3D

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

Head to head
About

Solid Engineer

This app teaches programming through visual 3D model creation. It offers modes for beginners to advanced users, including JavaScript support. Models can be printed or shared.

Highlights
  • Visual programming interface
  • 3D model creation
  • Printable model export
  • Beginner to advanced modes
  • JavaScript integration
  • Keyframe animation
Features
Read full description

Learn programming and create 3D models that can be printed or shared with other users. The 'basic' mode helps students to learn the basics of programming by dragging and dropping programming statements. The 'advanced' mode supports subtracting and intersecting volumes, profiles, parameters, part libraries and keyframe animation. In the 'programmer' mode you can use the power of modern JavaScript such as arrow functions, maps and filters.

About

ISD Studio 3D

Design and animate 3D characters with this tool. Create custom models by manipulating surfaces, then rig them with skeletons to add motion and export as glTF animations or VRM avatars.

Highlights
  • Create 3D character models
  • Deform and combine surfaces
  • Rig models with skeletons
  • Add motion for animation
  • Export glTF animations
  • Export VRM avatars
Features
Read full description

This is a tool to create glTF 3D animation and VRM avatar. You can: Create character models by deforming and combining surfaces, Bind (rig) models with skeletons and add motion to create animation, and Export glTF realtime 3D animation, Play and view it from different angles. You can also export VRM avatar.

Screenshots

Solid Engineer4 screens
ISD Studio 3D3 screens

Verdict

The call

The clearest difference is rating: Solid Engineer at 5.0 against ISD Studio 3D's 2.5. Solid Engineer also leads on in-app purchases (none vs 1). ISD Studio 3D's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (12.2 vs 15.6). On price, review sentiment, ratings volume and ads 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. ISD Studio 3D sells 1 one-off in-app purchase. Solid Engineer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Solid Engineer holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Solid Engineer ships an update every 5 months, ISD Studio 3D every 2 months. The most recent releases landed on June 11, 2026 and August 5, 2026 respectively.

Scorecard4 real differences · 6 level
Solid Engineer versus ISD Studio 3D: the parameters behind the verdict, then further details
ParameterSolid EngineerISD Studio 3D
PriceFreeFree
Rating5.0 (1 ratings) — better2.5 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.2 — better
Further details — not scored
Size16 MB62 MB
Age rating4+4+
DeveloperAxxem B.V.Lilysoft LLC

Customer experience

Solid Engineer

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

ISD Studio 3D

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Solid Engineer

No in-app purchases

1 purchases

ISD Studio 3D

One-time1
  • Full version$2.99

Questions

Is Solid Engineer free?
Solid Engineer is free to download, with no in-app purchases.
Is ISD Studio 3D free?
ISD Studio 3D is free to download, with in-app purchases available.
Which has better reviews, Solid Engineer or ISD Studio 3D?
Solid Engineer is rated higher. Solid Engineer averages 5.0 out of 5 from 1 ratings, while ISD Studio 3D averages 2.5 from 2 ratings.
Do Solid Engineer or ISD Studio 3D have ads?
Neither Solid Engineer nor ISD Studio 3D shows ads.
Which is updated more often, Solid Engineer or ISD Studio 3D?
Solid Engineer ships an update every 5 months, and ISD Studio 3D every 2 months. Most recently, Solid Engineer was updated on June 11, 2026 and ISD Studio 3D on August 5, 2026.

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