Comparison

TrueOrigin vs Nhắc Lịch Âm

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

Nhắc Lịch Âm

Features

Read full description

Nhắc Lịch Âm là ứng dụng giúp bạn: - Tạo và quản lý các sự kiện theo âm lịch (như ngày giỗ, lễ cúng, rằm, mùng một...) - Tự động chuyển đổi ngày âm lịch sang dương lịch, cho nhiều năm liên tiếp - Lưu sự kiện vào lịch điện thoại của bạn - Nhắc nhở bạn trước khi sự kiện diễn ra

Screenshots

TrueOrigin4 screens

Nhắc Lịch Âm4 screens

Verdict

The call

The clearest difference is price: TrueOrigin at Free against Nhắc Lịch Âm's $0.99. Nhắc Lịch Âm's advantage is update cadence (every 2 days vs monthly). On ads, in-app purchases, device support 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

TrueOrigin is free to download; Nhắc Lịch Âm costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TrueOrigin ships an update monthly, Nhắc Lịch Âm every 2 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 6 level

TrueOrigin versus Nhắc Lịch Âm: the parameters behind the verdict, then further details
Parameter	TrueOrigin	Nhắc Lịch Âm
Price	Free — better	$0.99
Positive reviews	85.7% of reviews	—
Update frequency	Monthly	Every 2 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	37 MB	30 MB
Age rating	4+	4+
Developer	Onyx Viet Nam	Minh Nguyen Dang

In-app purchases

None

TrueOrigin

No in-app purchases

None

Nhắc Lịch Âm

No in-app purchases

Questions

Is TrueOrigin free?

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

Is Nhắc Lịch Âm free?

Nhắc Lịch Âm costs $0.99, with no in-app purchases.

Do TrueOrigin or Nhắc Lịch Âm have ads?

Neither TrueOrigin nor Nhắc Lịch Âm shows ads.

Which is updated more often, TrueOrigin or Nhắc Lịch Âm?

TrueOrigin ships an update monthly, and Nhắc Lịch Âm every 2 days. Most recently, TrueOrigin was updated on October 8, 2026 and Nhắc Lịch Âm on October 10, 2026.