Comparison

CaptainsLog by RackDiscipline vs RNKD.

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

Head to head
About

CaptainsLog by RackDiscipline

Track your pool team's performance and gain insights into opponents. Supports various league formats and gamifies team competition to help you make smart match-up choices and improve your win rate.

Highlights
  • Team performance tracking
  • Opponent insights
  • Gamified team competition
  • Player and team metrics
  • Database of team performance
  • Import/export data (.csv)
Features
Read full description

Check out ‘The Captain’s Log’ from Rack Discipline, a game-changing app designed exclusively for pool players. It’s like having a personal performance tracker for your 8-Ball or 9-Ball pool team. - Who’s it for?  Pool team captains, of course! But even if you’re not a captain, you can still get a ton of value from tracking your team’s performance. Over time, you’ll gain insights into your team’s strengths and weaknesses, and you’ll also be able to track your opponents’ performance. This will help you make smart match-up choices and improve your chances of winning. What formats does it support?  We’ve got you covered with a wide range of league formats, including 3, 4, and 5 match team formats (like APA and USAPL leagues), ABCD, APA, and Fargo ranking systems, and 1-point, 10-point, and 14-point races. 8-Ball, 9-Ball, and 10-Ball formats are all well-suited. What formats don’t work? - BCA League play, especially 5-person teams with player rotation (like 25, 20, or 50 single-rack matchups per match). We could make it work, but we think customers would find the data entry too tedious. It would take away from the fun of using the tool. Also, individual leagues aren’t supported because our focus is on team formats. Here are some of the cool features: - Gamification for your team to measure and compare performance each session. - Decision support and insights into your opponents. - (USAPL 14-point system only) Visualization of win scenarios. - Metrics for players and teams. - Build a database of team performance. - Import and export (.csv) data. Disclaimer: We’re not affiliated with Fargo, USAPL, BCA, or APA. This app isn’t sanctioned by or connected to these organizations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RNKD.

Read full description

Rnkd is the fastest way to run round-robin leagues and Americano doubles sessions for padel, squash, tennis, pickleball, and 15 more sports. Create a league in seconds — Rnkd generates the schedule, tracks scores, and updates standings in real time. Host Americano nights with provably fair partner rotation. Share live standings online so everyone can follow along. No spreadsheets. No WhatsApp groups. Just tap, score, and play. AMERICANO SESSIONS Host one-night Americano doubles with rotating partners. Provably fair rotation where everyone partners everyone. Individual cumulative point standings. Fairness audit so you can see the math. Perfect for padel, pickleball, tennis, and table tennis. SHARE ONLINE (PRO) Publish your standings to a live web page anyone can view — no app needed. Players open the link on any phone, tablet, or club TV. Optional password protection with real encryption. Players can even submit scores from the browser — you approve in-app. SHARE EVERYTHING Share beautiful standings tables, match results, player stats cards, and ELO charts as images — perfect for Instagram Stories, WhatsApp, or iMessage. Export full results as PDF. QR codes for easy sharing at club nights. PLAYER PROFILES Create persistent player profiles that follow you across leagues and sessions. Upload a photo, track your global stats, and build your competitive history over time. ELO RATINGS Every profiled player gets a dynamic ELO skill rating (starting at 1500) that updates after each match. See how you stack up and track your improvement with interactive trend charts. HEAD-TO-HEAD Compare any two players side by side. View match record, set ratio, point differential, and a chronological list of past meetings. CROSS-LEAGUE STATS Your profile aggregates wins, losses, sets, and points across every league and session you've played in. One place to see your full competitive history. EFFORTLESS LEAGUE CREATION Create a new league in seconds. Just pick your sport, add players, and Rnkd automatically generates a fair round-robin schedule where everyone plays everyone. 19 SPORTS SUPPORTED - Racquet Sports: Squash, Tennis, Padel, Table Tennis, Badminton, Pickleball, Racquetball, Beach Tennis - Team Sports: Soccer, Basketball, Handball, Hockey - Volleyball: Indoor & Beach Volleyball - Other: Darts, Bowling, Golf, Chess, Pool/Billiards SMART SCORING Score matches quickly using simple tap controls - no keyboard needed. Tap any score number to enter it directly on a numpad, or use the ± steppers. Rnkd automatically validates scores based on each sport's rules, including win-by-2 margins and tiebreaks. LIVE STANDINGS Watch the leaderboard update in real-time as matches are completed. Our 4-tier ranking system handles ties fairly: 1. Matches won 2. Head-to-head results 3. Set/game difference 4. Point difference FLEXIBLE FORMATS Choose single set, best-of-3, or best-of-5 for leagues. Choose points per match (16, 21, 24, or 32) for Americano sessions. Add extra rounds anytime. FINALIZE & REOPEN When your league or session is complete, finalize to lock in results. Changed your mind? Reopen anytime to add more rounds. WORKS OFFLINE All your data stays on your device. No account required. The Share Online feature (Pro) is the only thing that uses internet — everything else works without connectivity. Perfect for: - Office leagues - Club nights - Padel Americano nights - Friend groups - Training squads - Casual tournaments SUBSCRIPTION INFO Rnkd Pro is available as a monthly ($4.99/month) or annual ($24.99/year) auto-renewable subscription, or a one-time lifetime purchase ($59.99). Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Payment is charged to your Apple ID account. Privacy Policy: https://getrnkd.app/privacy Terms of Use: https://getrnkd.app/terms

Screenshots

CaptainsLog by RackDiscipline4 screens
RNKD.4 screens

Verdict

The call

The clearest difference is iOS requirement: CaptainsLog by RackDiscipline at 17.0 against RNKD.'s 26.2. On price, update cadence, ads and in-app purchases 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

Both are free to download. CaptainsLog by RackDiscipline sells 2 in-app purchases, starting at $1.99 per month and RNKD. sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on July 6, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 8 level
CaptainsLog by RackDiscipline versus RNKD.: the parameters behind the verdict, then further details
ParameterCaptainsLog by RackDisciplineRNKD.
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size4 MB6 MB
Age rating4+12+
DeveloperPaul CarpenterMaciej Stepkowski

In-app purchases

2 purchases

CaptainsLog by RackDiscipline

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Annual Subscription$9.991 Year
3 purchases

RNKD.

Subscriptions2
  • Rnkd Pro (Monthly)$4.991 Month
  • Rnkd Pro (Annual)$24.991 Year
One-time1
  • Rnkd Pro (Lifetime)$59.99

Questions

Is CaptainsLog by RackDiscipline free?
CaptainsLog by RackDiscipline is free to download, with in-app purchases available.
Is RNKD. free?
RNKD. is free to download, with in-app purchases available.
Do CaptainsLog by RackDiscipline or RNKD. have ads?
Neither CaptainsLog by RackDiscipline nor RNKD. shows ads.
Which is updated more often, CaptainsLog by RackDiscipline or RNKD.?
CaptainsLog by RackDiscipline ships an update every 3 weeks, and RNKD. every 3 weeks. Most recently, CaptainsLog by RackDiscipline was updated on July 6, 2026 and RNKD. on September 9, 2026.

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