Inventory For Makers vs Dioptra
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Inventory For Makers
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Inventory 4 Makers is a simple inventory tracker built for crafters, Etsy sellers, makers, and small product businesses. Keep track of your products, SKUs, size and color variants, materials, and low-stock items without the complexity of a warehouse system or the mess of a spreadsheet. Whether you sell handmade candles, ceramics, leather goods, jewelry, prints, craft products, or made-to-order items, Inventory 4 Makers helps you know what you have, what is running low, and what needs to be restocked. Built for small shops Add products with names, SKUs, categories, and notes. Create variants for size, color, material, or any combination you use in your shop. Each variant can have its own stock quantity, so you can track real inventory more clearly. Track materials too Need to manage supplies, raw materials, packaging, or ingredients? Add optional materials with units, suppliers, and low-stock thresholds, so you can see what needs to be reordered before it slows you down. Low-stock alerts Set low-stock thresholds for products, variants, and materials. Inventory 4 Makers keeps warning states visible so you can quickly spot what needs attention. Private iCloud sync Your data stays in your private iCloud using CloudKit. Sync your inventory across iPhone and iPad without creating another account. Share with your small team Invite other iOS users to view and edit your inventory through iCloud sharing. Perfect for partners, assistants, family businesses, or co-makers working on the same shop. CSV export Export your products, variants, materials, or full inventory to CSV for accounting, backups, or opening in a spreadsheet. Inventory 4 Makers is not a complex warehouse platform. It is a lightweight stock tracker for solo makers and tiny teams who want simple, reliable inventory they can actually keep up to date.
Dioptra
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A 3D model viewer for iPhone and iPad that takes measurement seriously. Open a file, turn it over, and tap two points on the surface to get a real distance. FORMATS ⢠glTF ā .glb and .gltf ⢠USD ā .usdz, .usdc, .usda and .usd ⢠STL ā 3D prints and CAD exports, read in millimetres and turned upright ⢠PLY ā scans and photogrammetry, with per-vertex colour ⢠VRM ⢠Interactive pages ā an .html export keeps its own controls and runs as it was built MEASURE ⢠Tap two points for a true distance ⢠Take as many measurements as you need; they stay listed with the model ⢠Switch between metric and imperial whenever you like ⢠Set what one file unit means: metres, centimetres, millimetres, inches or feet INSPECT ⢠Orbit, pan and zoom, or leave it turning on its own ⢠Wireframe, to see how a mesh is built ⢠Studio, light and dark backgrounds ⢠Play embedded animations, one clip at a time ⢠Model info: width, height and depth, plus triangles, vertices, meshes, materials, textures, nodes and animations ⢠Share a snapshot of the view ORGANISE ⢠Folders, which appear in the Files app exactly as they do here ⢠Search, sort by name, type or date, and switch between a list and a grid ⢠Rename, drag a model onto a folder to file it, or delete it ⢠Bring models in with the picker, from another app's share sheet, or by dropping them into the Dioptra folder in Files SAMPLES Six models come with the app, one for each kind of file it opens, all built to real-world scale: the ancient sighting instrument the app is named for, a Roman surveyor's groma, a sundial's gnomon, a tripod foot in millimetres, a surveyed patch of terrain, and an interactive plan of sight lines. PRIVATE BY DEFAULT No account, no sign-in, no cloud, no tracking and no ads. Your models stay on your device and everything works offline.
Screenshots
Verdict
The clearest difference is in-app purchases: Inventory For Makers at none against Dioptra's 3. On price, update cadence, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Dioptra sells 3 one-off in-app purchases. Inventory For Makers asks for nothing beyond the download.
Inventory For Makers ships an update every 10 days, Dioptra fortnightly. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.
| Parameter | Inventory For Makers | Dioptra |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days ā better | Fortnightly |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details ā not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hernan Amiune | Zachary Griffin |
In-app purchases
Inventory For Makers
No in-app purchases
Dioptra
- Small Tip$0.99
- Tip$1.99
- Generous Tip$4.99
Questions
Is Inventory For Makers free?
Is Dioptra free?
Do Inventory For Makers or Dioptra have ads?
Which is updated more often, Inventory For Makers or Dioptra?
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