TDSBot vs e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TDSBot
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TDSBot tracks incoming and purified water TDS (ppm), temperature, volume of water filtered and its flow rate in your reverse osmosis water filter system. It provides you with real time quality of water, total water filtered, and status of filter cartridges. It notifies you about water quality, leaks, blockage, abnormal temperature and predictive filter maintenance alerts so that you can proactively take action to ensure that your system runs efficiently and ensure good potable water always. Visualize system dashboard, device setup, configure alerts using the free app.
e
This tool allows water quality professionals to collect, manage, analyze, and track water quality test parameters. It is designed for water treatment facilities and professionals in the field.
- Water quality data collection
- Data management
- Analysis of test parameters
- Tracking of water quality
- Designed for professionals
- Supports water treatment facilities
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The e-sens ROAM app is a free water quality collection tool to gather, manage, analyze and track all your water quality test parameters. Built for Water quality professionals and water treatment facilities.
Screenshots
Verdict
TDSBot and e are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.
| Parameter | TDSBot | e |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 48 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | WaterTDS Inc | e-sens, Inc. |
In-app purchases
TDSBot
No in-app purchases
e
No in-app purchases
