FastCaller vs DVS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FastCaller
This app offers a smart T9 dialer for instant contact search. Quickly find and call contacts with minimal taps by typing any part of their name or number. It features a clean interface and supports multiple languages for efficient communication.
- Smart T9 keyboard for contact search
- Search by name or number (partial)
- Multi-language support
- Quick call via long-press
- Recent calls prioritized
- Clean and simple interface
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FastCaller Smart T9 Dialer for Instant Contact Search FastCaller helps you find and call contacts quickly with fewer taps. Just start typing — you don't need the full name or number. The built-in T9 keyboard matches results instantly using any part of the name, surname, or phone number. The search engine is fast and accurate, designed to get you to the right contact with minimal effort. - T9 keyboard with smart contact search - Works with both names and numbers, even partial ones - Supports multiple languages with matching character sets - Long-press to quickly call a contact - Recent calls stay on top for faster redial - Taptic feedback when the call connects (when dialing from the app) - Simple, clean interface with no clutter FastCaller is made for users who want speed and efficiency in everyday calling.
DVS
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The DVS Control app can be used in conjunction with with the DVS Control Unit. The app uses sophisticated software for the use with smart phones, tablets and computers (PC & Mac). By using the DVS Control app you can connect your DVS Control Unit to your wireless network. Once connected you can remotely access the settings of the unit, set alarm notifications and view live sensor readings. For example, if for any reason the oxygen concentration falls below a set point, you will receive an alarm (push notification) to your device. Using the DVS Control app you are able to remotely view how your system is performing. For example, check when the unit was last cleaned. You may also adjust the settings of the control unit, such as the duration of cleaning intervals. Main Features: - Remotely access the DVS Control Unit. - Receive alarms. - View live performance data. - Easily adjust settings. - View temperature, pH and Oxygen %. - Pond water level control
Screenshots
Verdict
The clearest difference is in-app purchases: DVS at none against FastCaller's 4. DVS also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.6). On price, update cadence 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. FastCaller sells 4 in-app purchases, starting at $0.99 per month. DVS asks for nothing beyond the download.
FastCaller ships an update every 2 months, DVS every 3 months. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.
| Parameter | FastCaller | DVS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (15 ratings) — better | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Roman Bekas | Senect GmbH & Co. KG |
In-app purchases
FastCaller
- No ADs & Quick Dial monthly$0.991 Month
- No ADs & Speed Dial yearly$9.991 Year
- Remove Ads$0.99
- Unlock Quick Dial$0.99
DVS
No in-app purchases









