Comparison

Master Spy vs harbor bcg

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

Head to head

Disguise and Stealth

Blockchain Idle Game

About

Master Spy

Read full description

A Master of Disguise and Stealth. Change into Props, Sneak past the Sentinels. Search for Intel (“Stars”), Collect them and Run away with these precious merchandise!

About

harbor bcg

Embark on a treasure-hunting voyage across the open sea, discovering new harbors and mysterious lands. Explore the vastness of the world from your device.

Highlights

Treasure hunting voyages
Ship exploration
Discover new harbors
Explore mysterious lands
Idle gameplay mechanics

Features

Read full description

Let's go on a voyage to hunt treasures by ship. You may discover a new harbor on the open sea. Only you could find mysterious lands. How far is the other side of the world? Bon voyage!

Screenshots

Master Spy4 screens

harbor bcg2 screens

Verdict

The call

The clearest difference is in-app purchases: Master Spy at none against harbor bcg's 10. Master Spy also leads on iOS requirement (10.0 vs 13.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. harbor bcg sells 10 in-app purchases, starting at $1.49 per month. Master Spy asks for nothing beyond the download.

UpkeepUpdate frequency

Master Spy ships an update monthly, harbor bcg every 6 weeks. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 6 level

Master Spy versus harbor bcg: the parameters behind the verdict, then further details
Parameter	Master Spy	harbor bcg
Price	Free	Free
Positive reviews	—	0.0% of reviews
Update frequency	Monthly — better	Every 6 weeks
Ads	Yes	Yes
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	10.0 — better	13.0
Further details — not scored
Size	111 MB	166 MB
Age rating	9+	9+
Developer	Pandora Educacao Ludica Ltda	Aquariumy Studio Inc.

In-app purchases

None

Master Spy

No in-app purchases

10 purchases

harbor bcg

Subscriptions9

Airship$1.491 Month
Takao$1.491 Month
Submarine$1.491 Month

Show 6 more

Zara$1.491 Month
Aircraft carrier$1.491 Month
Cute elephant$1.491 Month
Cute tiger$1.491 Month
Cute sheep$1.491 Month
Cute dog$1.491 Month

One-time1

NFT pass * 1$1.99

Questions

Is Master Spy free?

Master Spy is free to download, with no in-app purchases.

Is harbor bcg free?

harbor bcg is free to download, with in-app purchases available.

Do Master Spy or harbor bcg have ads?

Both Master Spy and harbor bcg show ads.

Which is updated more often, Master Spy or harbor bcg?

Master Spy ships an update monthly, and harbor bcg every 6 weeks. Most recently, Master Spy was updated on September 14, 2026 and harbor bcg on June 1, 2026.