symlex vs SilverDialer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
SilverDialer
Make affordable international calls using your iPhone contacts. Enjoy crystal-clear quality and low rates for VoIP calls over Wi-Fi or cellular data. Track call history and balance information easily.
- VoIP calls
- Uses iPhone contacts
- Low international rates
- WIFI, 4G/3G, 2G EDGE connectivity
- Balance information
- Call status logs
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App Benefits: •Uses iPhone contacts •Crystal Clear Quality •Lowest International Rates •Satisfaction guaranteed! •With this application, user can make cheap VOIP calls. Main features: * Making and receiving VoIP calls * Connectivity through WIFI, 4G/3G,2G EDGE * Integrated contacts from the phone * Loudspeaker * Balance information * Time, call status logs How to Activate: 1. Go to the App Store and download 'SilverDialer' on your iPhone, iPad and or iPod. 2. Launch 'SilverDialer' => Settings => enter operator code, your username and PIN. 3. Launch 'SilverDialer' and dial destination number using any of the Dial formats or directly from the Contact list.
Screenshots
Verdict
The clearest difference is ads: SilverDialer at none against symlex's shown. SilverDialer also leads on monetization model (free vs ad-supported). symlex's advantage is review sentiment (50% vs 25%) and iOS requirement (10.3 vs 15.0). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
symlex ships an update every 6 weeks, SilverDialer every 2 months. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.
| Parameter | symlex | SilverDialer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.4 (5 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 25.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 28 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Spirnytel Private Limited | REVE Systems (S) Pte. Ltd. |
Customer experience
symlex
SilverDialer
In-app purchases
symlex
No in-app purchases
SilverDialer
No in-app purchases
