Comparison

Chesapeake Dolphin Watch vs Cribbage Trainer

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

Head to head
About

Chesapeake Dolphin Watch

Contribute to scientific research by reporting dolphin sightings in the Chesapeake Bay. Log your observations, including location and number of dolphins seen, and upload photos or videos to aid in ecological studies.

Highlights
  • Report dolphin sightings
  • Log location and count
  • Upload photos and videos
  • Contribute to scientific research
  • Track dolphin activity in the Bay
Features
Read full description

The team at the University of Maryland Center for Environmental Science's Chesapeake Biological Laboratory are studying how often dolphins actually come into the Chesapeake Bay, how long they spend here, what areas of the Bay they are using and why. Chesapeake Dolphin Watch allows citizen scientists like you to report when you see a dolphin in the Bay. You simply point to where you saw the dolphin or use your current location and tell us about how many you saw. You can also include photos or videos to provide even more useful information to our team!

About

Cribbage Trainer

Features
Read full description

Cribbage Trainer is a free app for practicing standard-deck cribbage in five-minute drills: count hands, peg to 31, choose strong discards, and learn the reason behind every answer. Cribbage Trainer is a focused practice companion for players learning the game or sharpening decisions between table sessions. No opponents, no pressure, and no account required. Just quick interactive reps that build confidence before the next deal. FOUR FREE PRACTICE ROOMS THE CARD ROOM Learn the standard deck, card values, fifteens, pairs, runs, flushes, his nobs, the starter, the crib, and the race to 121. THE SCORING ROOM See a hand, identify its scoring shapes, and build a reliable order for counting fifteens, pairs, runs, flushes, nobs, and the crib. THE DISCARD ROOM Study the tradeoff between your hand and the dealer's crib. Choose two cards to discard, then compare your decision with the coach's reasoning. THE PEGGING ROOM Practice running totals, 15s, 31, pairs, runs, go, last card, and the small decisions that turn a pegging sequence into points. CRIBBAGE+ (optional upgrade) Everything above stays free, forever. Cribbage+ adds fresh practice that never runs out: ENDLESS PRACTICE generates new legal hands for focused counting and pegging practice. FIX MY MISTAKES remembers what you missed and brings it back on a spaced schedule. TIMED CHALLENGE gives you ninety seconds and a personal best to chase. EXTRA PRACTICE SETS add original questions to every beginner room. THE MASTER TABLES open advanced counting, defense, discard, and table strategy. BUILT FOR NEW PLAYERS Swipeable cards explain the why on the back. Streaks keep practice moving. Original teaching hands make the rules easier to remember at a real table. Cribbage Trainer is an independent practice app. House rules vary, so use the rules agreed at your table. SUBSCRIPTIONS Cribbage+ is available as an auto-renewing subscription (Monthly or Yearly, both with a 7-day free trial) or as a one-time Lifetime purchase. Prices are shown in the app before you buy and vary by region. Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Terms of Use (Apple's standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/. Privacy Policy: https://jackwallner.com/ios/cribbage/privacy-policy.html.

Screenshots

Chesapeake Dolphin Watch4 screens
Cribbage Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Chesapeake Dolphin Watch at none against Cribbage Trainer's 3. Chesapeake Dolphin Watch also leads on iOS requirement (15.0 vs 17.0). Cribbage Trainer's advantage is update cadence (every 8 days vs every 8 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cribbage Trainer sells 3 in-app purchases, starting at $6.99 per month. Chesapeake Dolphin Watch asks for nothing beyond the download.

UpkeepUpdate frequency

Chesapeake Dolphin Watch ships an update every 8 months, Cribbage Trainer every 8 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Chesapeake Dolphin Watch versus Cribbage Trainer: the parameters behind the verdict, then further details
ParameterChesapeake Dolphin WatchCribbage Trainer
PriceFreeFree
Rating2.8 (10 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings10 — better—
Update frequencyEvery 8 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size10 MB20 MB
Age rating4+4+
DeveloperTony NiemannJack Wallner

In-app purchases

None

Chesapeake Dolphin Watch

No in-app purchases

3 purchases

Cribbage Trainer

Subscriptions2
  • Cribbage+ Monthly7 Days trial$6.991 Month
  • Cribbage+ Yearly7 Days trial$29.991 Year
One-time1
  • Cribbage+ Lifetime$69.99

Questions

Is Chesapeake Dolphin Watch free?
Chesapeake Dolphin Watch is free to download, with no in-app purchases.
Is Cribbage Trainer free?
Cribbage Trainer is free to download, with in-app purchases available.
Do Chesapeake Dolphin Watch or Cribbage Trainer have ads?
Neither Chesapeake Dolphin Watch nor Cribbage Trainer shows ads.
Which is updated more often, Chesapeake Dolphin Watch or Cribbage Trainer?
Chesapeake Dolphin Watch ships an update every 8 months, and Cribbage Trainer every 8 days. Most recently, Chesapeake Dolphin Watch was updated on November 2, 2026 and Cribbage Trainer on November 6, 2026.

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