Model Inventory vs Trinvo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Model Inventory
This app helps model railroad enthusiasts organize their collections. Track locomotives, rolling stock, structures, and accessories with custom categories, purchase details, photos, and notes. It's ideal for managing your collection and for use at train shows.
- Track locomotives, rolling stock, structures, scenery, accessories
- Create custom categories
- Log purchase date and cost
- Store photos
- Add notes
- Useful for train shows and swap meets
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Easy-to-use inventory system for tracking your model railroad locomotives, rolling stock, structures, scenery and accessories. Create custom categories, log item purchase date and cost, store photos, and make notes. Perfect to take to train shows and swap meets.
Trinvo
Streamline inventory management and conduct physical counts directly from your smart device. Easily share or upload your results to a chosen destination.
- Inventory management
- Process counts
- Cycle counts
- Physical counts
- Smart device operation
- Results sharing
- Data upload
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Manage inventory and handle process counts, cycle counts, and physical counts from your smart device or tablet. Share your results with others or upload them to a destination you choose!
Screenshots
Verdict
The clearest difference is review sentiment: Trinvo at 100% against Model Inventory's 24%. Trinvo also leads on rating (5.0 vs 3.1). Model Inventory's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (9.0 vs 17.5). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Trinvo holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 24% of Model Inventory's written reviews are positive against 100% of Trinvo's.
Model Inventory ships an update every 4 weeks, Trinvo every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | Model Inventory | Trinvo |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (9 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 24.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Woodland Scenics | Cabott |
Customer experience
Model Inventory
Trinvo
In-app purchases
Model Inventory
No in-app purchases
Trinvo
No in-app purchases
