Comparison

TrueOrigin vs Công Viên Xanh

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

Head to head

About

TrueOrigin

This app provides a dynamic digital signature solution to authenticate and prevent counterfeiting of stamps. It offers a novel approach to verifying authenticity directly from the source.

Highlights

Dynamic digital signatures
Stamp authentication
Counterfeit prevention
Root-level verification

Features

Read full description

The Origin Authentication solution, with dynamic digital signatures - transforms and saves on stamps, the new principle of detecting and preventing stamp counterfeiting solves the Authentication problem right from the root.

About

Công Viên Xanh

Features

Read full description

Ứng dụng giúp cư dân Ecopark dễ dàng trải nghiệm Công Viên Ecopark. Tải app ngay để trải nghiệm

Screenshots

TrueOrigin4 screens

Công Viên Xanh4 screens

Verdict

The call

The clearest difference is update cadence: Công Viên Xanh at every 3 days against TrueOrigin's monthly. On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TrueOrigin ships an update monthly, Công Viên Xanh every 3 days. Both last shipped on November 3, 2026.

Scorecard1 real difference · 7 level

TrueOrigin versus Công Viên Xanh: the parameters behind the verdict, then further details
Parameter	TrueOrigin	Công Viên Xanh
Price	Free	Free
Positive reviews	85.7% of reviews	—
Update frequency	Monthly	Every 3 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0	13
Further details — not scored
Size	37 MB	28 MB
Age rating	4+	17+
Developer	Onyx Viet Nam	SandboxVN Technoloy JSC

In-app purchases

None

TrueOrigin

No in-app purchases

None

Công Viên Xanh

No in-app purchases

Questions

Is TrueOrigin free?

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

Is Công Viên Xanh free?

Công Viên Xanh is free to download, with no in-app purchases.

Do TrueOrigin or Công Viên Xanh have ads?

Neither TrueOrigin nor Công Viên Xanh shows ads.

Which is updated more often, TrueOrigin or Công Viên Xanh?

TrueOrigin ships an update monthly, and Công Viên Xanh every 3 days. Most recently, TrueOrigin was updated on November 3, 2026 and Công Viên Xanh on November 3, 2026.