Comparison

Tennis Plus vs Night Register

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tennis Plus

Analyze your tennis game with this Apple Watch app. Track swings, measure speed and spin, and review shot mechanics. It syncs with your iPhone and integrates with HealthKit for step and calorie data.

Highlights
  • Swing analysis (forehand, backhand, serve, etc.)
  • Measure swing speed and spin
  • Video playback synced with swing recognition
  • Real-time swing detection
  • HealthKit integration for steps and calories
  • Supports right and left-hand grips
Features
Read full description

Enjoy your tennis with your Apple Watch! This is the first tennis activity tracker & swing analyzer app for Apple Watch. Just wear your watch on your wrist and play. Tennis Plus : Tennis Tracker & Swing Analyzer Features - Simple UI & Quick start - Breakdown your shot and check your style (forehand, backhand, topspin, flat, slice, volley, smash, serve) - Measure your swing speed & spin - Video playback synced swing recognitions. - Support right-hand and also left-hand grip player - Real time detection of swings - Energy efficient for battery life (Optimized & accurate algorithm) - Working all the time you play (Even when the screen is off) - Everything is synced automatically with your iPhone - Check your step counts & calories during the sessions (integrated with the HealthKit) ** Apple Watch & WatchOS 3.0 is required but no need any other device ** WatchOS 3 still has some stabillity issues. We recommend disabling watch notifications while the app is running. ** Please feel free to send me your feedback. (use e-mail or twitter)

About

Night Register

Features
Read full description

Night Register is a minimal sleep log. When you wake, register what happened — when you fell asleep, when you woke, and any observation worth noting. No alarms. No sleep scores. No advice. Just a quiet record that reveals your pattern over time. - Register sleep when you wake - See duration calculated automatically - Add optional notes for context - View your history and patterns - Export your data anytime Some apps try to optimize your sleep. Night Register simply helps you notice it.

Screenshots

Tennis Plus4 screens
Night Register4 screens

Verdict

The call

The clearest difference is price: Night Register at Free against Tennis Plus's $9.99. Night Register also leads on update cadence (daily vs every 5 weeks) and iOS requirement (12.0 vs 17.6). On 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

CostPrice · In-app purchases · Ads · Monetization

Night Register is free to download; Tennis Plus costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Tennis Plus ships an update every 5 weeks, Night Register daily. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Tennis Plus versus Night Register: the parameters behind the verdict, then further details
ParameterTennis PlusNight Register
Price$9.99Free — better
Rating3.7 (109 ratings) — better—
Positive reviews22.9% of reviews—
Number of ratings109 — better—
Update frequencyEvery 5 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size9 MB30 MB
Age rating4+4+
DeveloperJae Hyeon ParkZaid Naim

In-app purchases

None

Tennis Plus

No in-app purchases

None

Night Register

No in-app purchases

Questions

Is Tennis Plus free?
Tennis Plus costs $9.99, with no in-app purchases.
Is Night Register free?
Night Register is free to download, with no in-app purchases.
Do Tennis Plus or Night Register have ads?
Neither Tennis Plus nor Night Register shows ads.
Which is updated more often, Tennis Plus or Night Register?
Tennis Plus ships an update every 5 weeks, and Night Register daily. Most recently, Tennis Plus was updated on November 6, 2026 and Night Register on October 30, 2026.

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