TOPO.app vs via
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TOPO.app
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Our TOPO product family is the only radar system that can offer axle detection along with length and speed measurement. Its recording and classification functions – including an additional microphone for pinpointing the position of the engine block – open up new dimensions in traffic data capture. Our devices can be used on roads inside and outside of urban areas. They can be integrated in a standard reflector post or installed on various pole systems.
via
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You wish to make on-site changes to your viasis or viacount II device? Or you wish to read your measured data and make evaluations locally? No problem! Simply install the via app on your iPhone and connect via Bluetooth. All settings can be easily executed and transferred to the devices.
Screenshots
Verdict
The clearest difference is update cadence: via at weekly against TOPO.app's every 2 months. 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.
TOPO.app ships an update every 2 months, via weekly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | TOPO.app | via |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 37 MB | 85 MB |
| Age rating | 4+ | 17+ |
| Developer | RTB Elektronik | via traffic controlling gmbh |
In-app purchases
TOPO.app
No in-app purchases
via
No in-app purchases
