Comparison

Blackjack Trainer 101 vs Double Down

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

Head to head
About

Blackjack Trainer 101

This app is a practice tool designed to help users learn and master basic strategy for the card game Blackjack. It offers various training modes and customization options to improve decision-making in different scenarios. While it doesn't simulate a full game, it focuses on teaching optimal play.

Highlights
  • Four learning modes (random, soft, pairs, custom)
  • Customizable house rules (decks, soft 17, doubling, surrender)
  • Skill levels for focused practice
  • Interactive strategy guide
  • Hint button for strategic analysis
  • Left/right-handed layouts
Read full description

Blackjack Trainer 101 is a basic strategy trainer. NOTE: This is *not* a Blackjack game, it is a practice aid for learning basic strategy in Blackjack, and it assumes you already are familiar with the basic rules of the game.  Using this app will *not* guarantee winning in real play, but it will help you play the best possible strategies in any situation. Features: • Four learning modes: random hands, soft hands, pairs, and a custom mode: choose any combination of hands to practice (requires paid upgrade). • Customize the house rules: number of decks in the shoe, hit vs. stand on soft 17, doubling rules and surrender • Skill levels: Higher levels concentrate your training on the harder-to-memorize hands • Strategy guide shows all the best moves and highlights the strategy for the current hand and dealer card • Hint button shows a strategic analysis of the current hand • Left-handed and right-handed playing layouts • Many different rule configurations (1-4 decks, dealer hits/stays on soft 17, double after split, early/late surrender)

About

Double Down

Learn the math behind blackjack strategy with detailed breakdowns of expected value, probabilities, and decision-making. Practice with customizable rules and track your progress through focused lessons and drills.

Highlights
  • Expected value breakdown
  • Win/push/loss probabilities
  • Customizable table rules
  • Progress tracking
  • Focused strategy lessons
  • Ad-free experience
Features
Read full description

Learn blackjack basic strategy and card counting, with the math behind each move. Play complete practice rounds and get feedback on every decision. Compare the expected value of hit, stand, double, split, and surrender, along with bust risk and win, push, and loss probabilities. Your progress measures the choices you make, so a lucky result does not count as a good decision. Set the number of decks, dealer soft-17 behavior, blackjack payout, surrender, doubling, and split rules. Save your own presets, consult a basic-strategy chart for the active rules, or build a hand in the solver. Counting Lab takes you from Hi-Lo card tags to running counts, full-deck countdowns, true counts, and index plays. Count opening hands across a table of up to five players. In Applied Counting, update the running count, convert it to a true count, and choose a play. Each drill states its rule assumptions and shows where you need more practice. Work through interactive lessons, take a mastery exam, or let Daily Coach choose a short review from your past mistakes. The Daily Challenge gives you a new set of decisions each day. Review weak spots in Progress and return directly to a focused drill. Challenge a friend with a hand and compare decisions after they answer. Practice offline on iPhone, iPad, and Mac. No ads or account required. Double Down is an educational strategy trainer: no real money is staked and no wagers are placed.

Screenshots

Blackjack Trainer 1014 screens
Double Down4 screens

Verdict

The call

The clearest difference is in-app purchases: Double Down at none against Blackjack Trainer 101's 1. Double Down also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). Blackjack Trainer 101's advantage is ratings volume (6.9K vs 5). On price, rating and iOS requirement 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. Blackjack Trainer 101 sells 1 one-off in-app purchase. Double Down asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Blackjack Trainer 101 against 4.8 for Double Down. That said, the two scores are not equally well evidenced: Blackjack Trainer 101 has 6.9K ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Blackjack Trainer 101 ships an update every 3 weeks, Double Down weekly. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Blackjack Trainer 101 versus Double Down: the parameters behind the verdict, then further details
ParameterBlackjack Trainer 101Double Down
PriceFreeFree
Rating4.8 (6.9K ratings)4.8 (5 ratings) — better
Positive reviews92.9% of reviews—
Number of ratings6.9K — better5
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS16.0 — better17.0
Further details — not scored
Size17 MB20 MB
Age rating17+4+
DeveloperDavid RichmondNeeraj Aggarwal

Customer experience

Blackjack Trainer 101

All ratings6,766 ratings
Positive95.9%
Neutral2.8%
Negative1.2%
Written reviews169 reviews
Positive92.9%
Neutral2.4%
Negative4.7%

Double Down

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Blackjack Trainer 101

Reported bugs

2 issues
  • Occasional crashes or performance issues
  • Discrepancies in basic strategy recommendations

Requested features

3 requests
  • Option to play out split hands
  • Ability to adjust volume
  • Inclusion of full hand history and dealer's final hand

Double Down

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Blackjack Trainer 101

One-time1
  • BlackJack 101 Upgrade to Pro$2.99
None

Double Down

No in-app purchases

Questions

Is Blackjack Trainer 101 free?
Blackjack Trainer 101 is free to download, with in-app purchases available.
Is Double Down free?
Double Down is free to download, with no in-app purchases.
Which has better reviews, Blackjack Trainer 101 or Double Down?
Double Down is rated higher. Blackjack Trainer 101 averages 4.8 out of 5 from 6.9K ratings, while Double Down averages 4.8 from 5 ratings.
Do Blackjack Trainer 101 or Double Down have ads?
Blackjack Trainer 101 shows ads; Double Down does not.
Which is updated more often, Blackjack Trainer 101 or Double Down?
Blackjack Trainer 101 ships an update every 3 weeks, and Double Down weekly. Most recently, Blackjack Trainer 101 was updated on October 21, 2026 and Double Down on October 13, 2026.

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