ETDiv vs ServeLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ETDiv
This app helps divide groups of players into two balanced teams based on their individual skill ratings. It allows you to specify players who must be on opposing teams, ensuring fair matchups. Generate multiple team combinations until you find the perfect one for your game.
- Player rating-based team division
- Specify players who cannot be on the same team
- Generate multiple unique team matchups
- Minimizes rating difference between teams
- Supports 1-9 player ratings
- Up to 7 player separation pairs
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ETDiv takes a group of players with 1-9 ratings, divides them into two teams, using player ratings to keep the teams even. It has a unique feature where you can specify up to 7 pairs of players (for example, your two best players) who cannot be on the same team. After adding players, specifying their ratings, and specifying which players you want separated on opposing teams, tapping the "Divide" button generates one MatchUp (with the minimal difference in player average ratings between the teams, i.e. the most even MatchUp). If you don't like that MatchUp, keep pushing the 'Next' button and ETDiv will keep generating new, unique MatchUps until it can't find any more new, unique MatchUps. Beats having "Captains" alternately picking players for their teams.
ServeLab
Film your tennis serve and receive instant AI-powered feedback on your technique. Identify mistakes and get actionable advice to improve your game. Your personal tennis coach is now available on your phone.
- AI-powered serve analysis
- Mistake identification
- Personalized improvement tips
- Video recording and feedback
- Pocket tennis coach
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Introducing Bert, your new AI tennis coach, and to take a lesson, all you have to do is film your serve with your phone, in a few minutes, Bert will tell you what mistakes you’re making and how to fix them. For more information: https://www.fuzzyyellowballs.com Terms of Use: https://www.fuzzyyellowballs.com/terms-of-use/
Screenshots
Verdict
The clearest difference is price: ServeLab at Free against ETDiv's $0.99. ServeLab also leads on iOS requirement (15.1 vs 17.6). ETDiv's advantage is rating (5.0 vs 2.0) and in-app purchases (none vs 3). On ratings volume, update cadence, ads 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
ServeLab is free to download; ETDiv costs $0.99 up front. ServeLab sells 3 in-app purchases, starting at $29.00 per month. ETDiv asks for nothing beyond the download.
ETDiv holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
ETDiv ships an update every 9 days, ServeLab weekly. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.
| Parameter | ETDiv | ServeLab |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 2.0 (2 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomoo Taguchi | Fuzzy Yellow Balls, LLC |
Customer experience
ETDiv
ServeLab
In-app purchases
ETDiv
No in-app purchases
ServeLab
- Bert Monthly$29.001 Month
- Bert Yearly$299.001 Year
- One lesson with Bert$67.00
