Haihaisoft Reader vs Tierzero Voice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Haihaisoft Reader
A free PDF reader for iOS devices that offers fast launch speeds. It can also open PDF documents protected by DRM-X 3.0. Requires iOS 6 or later.
- Free PDF document reader
- Fast launch speed
- DRM-X 3.0 protected PDF support
- iOS compatibility
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Haihaisoft Reader for iPhone/iPad/iPod is a free PDF document reader, with fast launch speed. It is also for reading PDF document protected by DRM-X 3.0 platform. It requires iOS 6 or later.
Tierzero Voice
This app provides a unified communications solution, extending business phone features to mobile devices. It allows users to maintain a consistent identity across devices, manage calls, contacts, and voicemail from a single interface.
- Unified Communications solution
- Maintain same identity across devices
- Seamless call transition
- Contact management
- Voicemail access
- Call history
- Answering rules and presence management
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Tierzero Voice is a SIP softclient that extends your Tierzero Service beyond the land line or desk top. It brings features of the Tierzero platform directly to end-user's mobile devices as a Unified Communications solution. Users are able to maintain the same identity when making or receiving calls from any location, regardless of device. They are also able to seamlessly transition an ongoing call from one device to another and continue that call without interruption. Tierzero Voice App grants users the ability to manage contacts, voicemail, call history and configurations in a single location. This includes the management of answering rules. greetings, and presence which all contribute to efficient communication.
Screenshots
Verdict
The clearest difference is rating: Tierzero Voice at 3.0 against Haihaisoft Reader's 1.2. Haihaisoft Reader's advantage is update cadence (every 5 months vs every 12 months) and iOS requirement (6.1 vs 14.0). On price, review sentiment, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tierzero Voice holds the better App Store score, 3.0 against 1.2. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Haihaisoft Reader ships an update every 5 months, Tierzero Voice every 12 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | Haihaisoft Reader | Tierzero Voice |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (5 ratings) | 3.0 (7 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 5 | 7 — better |
| Update frequency | Every 5 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 21 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | 海波 师 | Tierzero |
Customer experience
Haihaisoft Reader
Tierzero Voice
In-app purchases
Haihaisoft Reader
No in-app purchases
Tierzero Voice
No in-app purchases
Questions
Is Haihaisoft Reader free?
Is Tierzero Voice free?
Which has better reviews, Haihaisoft Reader or Tierzero Voice?
Do Haihaisoft Reader or Tierzero Voice have ads?
Which is updated more often, Haihaisoft Reader or Tierzero Voice?
Other comparisons
