ezModbus vs SpaceTags®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ezModbus
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Connect to industrial devices quickly and easily over direct WiFi communication (no middleware, no Internet needed). Fast and easy access to any Modbus devices. All setup is done and permanently saved on the phone for anytime immediate access. Add mobile connectivity quickly, easily and inexpensively yourself at any time. Ezmodbus is an easy to use Modbus app that lets you setup and save devices directly on your phone. Set up the device and the register map for text display directly on your phone and save the device and register map right on the phone for immediate and later use. All setup is permanently saved on the phone for convenient access at any time. Multiple options are provided to create the register maps for quick setup of multiple copies of the same or quick modification of similar devices. All setup is done right on the phone, no internet connection, downloads, or other apps are needed. Technical Specifications Modbus® Supported functions: Read Coil Read Analog Inputs Read Holding Registers Read Discrete Inputs Read multiple registers supported for long integers and floats. Data Formats supported: Unsigned Integer 16 bit Unsigned Integer 32 bit Signed Integer 16 bit Signed Integer 32 bit Float 32 bit (IEEE-754 floating point) Float 64 bit (IEEE-754 floating point) 32-bit ‘Modulus-10000’ Format (Schneider Electric ION) Unsigned char (8 bit), Most Significant Byte and Least Significant Byte Signed char (8 bit), Most Significant Byte and Least Significant Byte
SpaceTags®
This app utilizes augmented reality to overlay digital content onto real-world objects. It provides an intelligent and advanced digital reality experience by blending physical and digital environments for real-time data access.
- Augmented Reality technology
- Digital content overlay
- Real-time data access
- Interactive experiences
- Digital Reality experience
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SpaceTags app use the latest Augmented Reality technology to display digital content on the real objects, giving users the most intelligent and advanced Digital Reality experience. By blending the digital and physical worlds together, SpaceTags app creates interactive experience for users to access their data in real-time on field site at the location where they need to access those information the most.
Screenshots
Verdict
The clearest difference is price: SpaceTags® at Free against ezModbus's $4.99. SpaceTags® also leads on update cadence (every 3 months vs every 41 months) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support 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
SpaceTags® is free to download; ezModbus costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ezModbus ships an update every 41 months, SpaceTags® every 3 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | ezModbus | SpaceTags® |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 41 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Bitmakers LLC | SpaceTags LLC |
In-app purchases
ezModbus
No in-app purchases
SpaceTags®
No in-app purchases









