Comparison

symlex vs QTel Secure

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

Head to head
About

symlex

Make affordable voice calls worldwide with exceptional clarity. This app utilizes your iPhone contacts and offers features like a built-in tunnel to bypass VoIP blockades, ensuring connectivity through various networks. Track call costs, time, and status with ease.

Highlights
  • Worldwide voice calls
  • Crystal clear voice quality
  • Built-in tunnel for VoIP blockades
  • Uses iPhone contacts
  • Call cost and time logs
  • Peer-to-peer call support
Features
Read full description

Symlex Pro for iPhone let you make voice call worldwide with the finest voice quality.. App Benefits: •Works from all over the world •Uses iPhone contacts •Crystal Clear Quality •Satisfaction guaranteed! With this application, user can make cheap VOIP calls. Main features: • Making VoIP calls • Built-in tunnel for passing through VoIP blockades • Connectivity through WIFI, 4G/3G,2G EDGE • Integrated contacts from the phone • Loudspeaker • Balance information • Call cost information • Time, call status logs • Peer to Peer call support How to Activate: 1. Go to App Store and download “Symlex Pro” on your iPhone 2. Launch Symlex Pro--> Enter Opcode, enter your user name and password. 3. Launch Symlex Pro and dial destination number using any of the Dial formats or directly from Contact list.

About

QTel Secure

This app offers a highly secure platform for voice, messaging, and video calls with end-to-end encryption. It ensures total privacy using quantum-resistant encryption and operates seamlessly across various devices for teams and organizations.

Highlights
  • Quantum-resistant encryption
  • End-to-end encrypted voice, messaging, video
  • Native mobile calling
  • Message/call screen protection
  • Secure meetings
  • Document attachments
  • Cross-device compatibility
Features
Read full description

QTel Secure is a highly secure communications platform that provides encrypted, end-to-end voice, messaging, and video. Make all your conversations secure between smartphones, tablets, laptops, and desktops. Features include: • Total privacy of communications using quantum-resistant encryption. • Encrypted, end-to-end voice, messaging, and video by default. • Native mobile calling experience. • Message/call screen protection. • Organize meetings with voice and video. • Secure messaging with images and text, including document attachments. • All communications are supported by our secured, private network. • Operates seamlessly across all mobile devices, tablets, and desktop computers. QTel Secure is designed for teams and organizations both large and small. Please contact Global Integrity sales (the developer) to set up your account.

Screenshots

symlex3 screens
QTel Secure4 screens

Verdict

The call

The clearest difference is review sentiment: QTel Secure at 100% against symlex's 50%. QTel Secure also leads on ads (none vs shown) and monetization model (free vs ad-supported). symlex's advantage is update cadence (every 6 weeks vs every 6 months) and iOS requirement (10.3 vs 15.0). On price, 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

symlex ships an update every 6 weeks, QTel Secure every 6 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
symlex versus QTel Secure: the parameters behind the verdict, then further details
ParametersymlexQTel Secure
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings—3 — better
Update frequencyEvery 6 weeks — betterEvery 6 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.3 — better15.0
Further details — not scored
Size28 MB65 MB
Age rating4+4+
DeveloperSpirnytel Private LimitedGlobal Integrity, Inc.

Customer experience

symlex

Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

QTel Secure

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

symlex

No in-app purchases

None

QTel Secure

No in-app purchases

Questions

Is symlex free?
symlex is free to download, with no in-app purchases.
Is QTel Secure free?
QTel Secure is free to download, with no in-app purchases.
Do symlex or QTel Secure have ads?
symlex shows ads; QTel Secure does not.
Which is updated more often, symlex or QTel Secure?
symlex ships an update every 6 weeks, and QTel Secure every 6 months. Most recently, symlex was updated on October 6, 2026 and QTel Secure on October 3, 2026.

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