Union Taxi vs Tab Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Union Taxi
Book, track, and rate taxi rides in Denver without making a phone call. See available taxis on a map, request a car to your location, and monitor your driver's real-time approach. Receive an alert when your driver arrives.
- Free electronic taxi booking
- Real-time taxi tracking
- Map view of available taxis
- Request car to GPS location
- Driver arrival alerts
- Rate taxi rides
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Union Taxi Denver App Free electronic taxi booking in Denver Book, track in realtime, and rate taxi rides. Save time- no phone call required. 1) See available nearby taxis on a map 2) Request a car to your GPS location or a nearby address 3) Monitor your taxi's realtime location as it approaches with a map view 4) Receive an alert when your driver arrives The app sends rides exclusively to Union Taxi Denver drivers. Union Taxi Denver's rate is set by Colorado public utility commission The Union Taxi Denver app was developed by MARS (A project of ITCurves).
Tab Zero
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Tab Zero gets people home safe from a night out — free, in one tap, paid for by community sponsors. FOR RIDERS (ALWAYS FREE) No account, no wallet, no typing. Set your home once, then one button gets you home. See your driver's photo, car, and plate; verify them with a pickup code; share a live trip link with someone you trust; and if you doze off waiting, a loud alarm makes sure you don't miss your ride. Your tab at the end: $0.00 — covered by the night's sponsor. FOR DRIVERS (ALWAYS FREE) Vetted rideshare drivers earn guaranteed sponsored fares during bar hours — see the miles and exact pay before accepting. No fare cut, ever. FOR SAFE-RIDE PROGRAMS Bar associations, breweries, and municipalities run their whole program on Tab Zero — dispatch, driver vetting, sponsor rules enforced automatically, event zones for games and weddings, and the reports that keep sponsor money renewing. 7-day free trial. Open your tab before you go out. Close it at zero. Terms of Use (EULA): https://georgialea.com/tabzero/terms.html Privacy Policy: https://georgialea.com/tabzero/privacy.html
Screenshots
Verdict
The clearest difference is iOS requirement: Tab Zero at 15.1 against Union Taxi's 18.0. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Union Taxi | Tab Zero |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 63 MB | 31 MB |
| Age rating | 4+ | 12+ |
| Developer | Union Taxi Cooperative | JOSEPH TOWNSEL |
In-app purchases
Union Taxi
No in-app purchases
Tab Zero
No in-app purchases









