Comparison

Rule Book UBTZ vs DjVu Reader & Viewer

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

Head to head

DjVu Document & eBook Reader

Free

📚 Books

★ 4.276 ratingsView app →

About

Rule Book UBTZ

Read full description

“УБТЗ” ХНН-ийн Дүрмийн дагуу “УБТЗ” ХНН-ийн Ерөнхий Хорооны гишүүд нь 6 хүний бүрэлдэхүүнтэй ба 3 гишүүн нь монголын талаас 3 нь оросын талаас 3 жилийн хугацаатай сонгогдоно. Ерөнхий хорооны дарга, орлогч даргын үүргийг хоёр тал мөн 3 жилийн хугацаатай ээлжлэн гүйцэтгэнэ. “УБТЗ” ХНН-ийн Ерөнхий хорооны одоогийн бүрэлдэхүүн: Монгол улсын талаас: Х.Ержан - "УБТЗ" ХНН-ийн Ерөнхий хорооны орлогч дарга Д.Наранпүрэв - Монголын авто тээвэрлэгчдийн нэгдсэн холбооны төлөөлөгч Ч.Сүрэнхорлоо - Монголын Төмөр замын инженерүүдийн холбооны ерөнхийлөгч ОХУ-ын талаас: В.Н. Морозов - “УБТЗ” ХНН-ийн Ерөнхий хорооны дарга, “Оросын төмөр замууд” НХН-ийн Ерөнхийлөгчийн ахлах зөвлөх А.С. Цыденов - ОХУ-ын тээврийн орлогч сайд В.В. Морозов - “Оросын төмөр замууд” НХН-ийн Монгол улс дахь Ерөнхий төлөөлөгч

About

DjVu Reader & Viewer

This app offers a modern and elegant way to read DjVu documents on iOS devices. It features high-quality rendering, a smart document tracking system, and a clean interface optimized for technical and academic material.

Highlights

High-quality DjVu rendering
Smart document tracking
Clean, intuitive interface
Dark/White mode options
Powerful search capabilities
Optimized performance for large documents

Features

Read full description

DjVu Reader is the modern, elegant solution for reading technical and academic DjVu documents on your iOS device. Experience crystal-clear rendering of complex documents with a clean, distraction-free interface designed for professional use. — KEY FEATURES — • High-quality rendering of DjVu documents with precise text and image display • Smart document tracking system to organize your reading (to-read, in-progress, completed) • Clean, intuitive interface optimized for academic and technical material • Dark/White modes options for comfortable reading in any environment • Powerful search capabilities to quickly find content within documents • Optimized performance for large technical documents and academic papers • Seamless document organization with smart folders and favorites (Coming Soon…) Whether you're a researcher, academic, student, or professional, DjVu Reader provides the perfect experience for your technical documents. — SUPPORT & LINKS — - Contact Us: support@djvu.app - Privacy Policy: https://djvu.app/privacy - Terms of Use: https://djvu.app/terms

Screenshots

Rule Book UBTZ4 screens

DjVu Reader & Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: Rule Book UBTZ at none against DjVu Reader & Viewer's 2. Rule Book UBTZ also leads on iOS requirement (8.0 vs 16.2). 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. DjVu Reader & Viewer sells 2 in-app purchases, starting at $2.99 per 7 days. Rule Book UBTZ asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level

Rule Book UBTZ versus DjVu Reader & Viewer: the parameters behind the verdict, then further details
Parameter	Rule Book UBTZ	DjVu Reader & Viewer
Price	Free	Free
Rating	—	4.2 (76 ratings) — better
Positive reviews	—	25.0% of reviews
Number of ratings	—	76 — better
Update frequency	Every 4 months	Every 4 months
Ads	No	No
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	8.0 — better	16.2
Further details — not scored
Size	27 MB	35 MB
Age rating	17+	4+
Developer	veritech	Yassir Hrout

In-app purchases

None

Rule Book UBTZ

No in-app purchases

2 purchases

DjVu Reader & Viewer

Subscriptions1

Weekly Plan$2.997 Days

One-time1

Lifetime Plan$5.99

Questions

Is Rule Book UBTZ free?

Rule Book UBTZ is free to download, with no in-app purchases.

Is DjVu Reader & Viewer free?

DjVu Reader & Viewer is free to download, with in-app purchases available.

Do Rule Book UBTZ or DjVu Reader & Viewer have ads?

Neither Rule Book UBTZ nor DjVu Reader & Viewer shows ads.

Which is updated more often, Rule Book UBTZ or DjVu Reader & Viewer?

Rule Book UBTZ ships an update every 4 months, and DjVu Reader & Viewer every 4 months. Most recently, Rule Book UBTZ was updated on November 2, 2026 and DjVu Reader & Viewer on November 8, 2026.