Comparison

TalkLine vs SkyDuo

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

Head to head
About

TalkLine

Connect with friends and family through text, image, and video sharing. Enjoy free voice calls and group chats. Offers public chat rooms for temporary conversations and notifications for messages.

Highlights
  • Text messaging
  • Image/video transfer
  • Free voice calls
  • Group voice chat
  • Public chat rooms
  • Contact integration
  • Profile editing
Features
Read full description

TalkLine is a messaging application. It is a FREE app to connect easily with your friends and families. TalkLine is a communication solution for today's social need, featuring text messaging, image/video transfer, voice call, group voice chat and much more. TalkLine uses your internet connection (4G/3G/Wi-Fi) to get connected with your families and friends totally free of cost. Why TalkLine Though the family of messaging apps are available, there are some state-of-the-art TalkLine features which takes the users experience one level ahead. Use TalkLine's Chat Room feature and switch to a new experience of conference voice-chatting. • MESSAGES: Send and receive text messages • MEDIA: Send and receive media contents like photos, videos and Voice Messages. • VOICE CALLS: Call your contacts for free with TalkLine Calling. TalkLine uses your internet connection. • GROUPS: Make a permanent group of your friends and families. • PUBLIC CHAT ROOM: Create a temporary room and invite your friends and experience our conference voice-chat as well as texting. Room will be deleted automatically after 24 hours of inactivity. • NOTIFICATION: Receive notification when app is closed/background. • CONTACTS: TalkLine make use of user existing phone contacts to connect to your friends and families • MORE: Edit your profile picture, status messages, share your location etc. • NOTE: Data charges may apply. TalkLine doesn't support calling emergency number.

About

SkyDuo

Connect with friends and family globally through free video calls and messaging. This app also provides secondary phone numbers for private calling and texting, offering a secure and cost-effective communication solution.

Highlights
  • Free video calls across devices
  • Private second phone numbers
  • Cheap international calls and texts
  • Fun messaging with stickers and GIFs
  • End-to-end encrypted calls and messages
  • Low data usage for calls
Features
Read full description

SkyDuo is a FREE Video Chat and Messaging App + WiFi Phone App. Live face to face video chat with friends and family for free, even if they are in another country. Get multiple phone numbers for unlimited calling and texting, to any mobile or landline. It's cool and easy, private and secure, reliable and fun. • Free Video Calls across Any Device Work across mobile, tablet or any smart device. Just send an invite link to your friend, then start your free face time video chat. Samsung, LG, Huawei, Xiaomi, Vivo, Oppo, TCL, Micromax, Realme, Motorola, all supported. • Private Second Phone Numbers Tired of giving out your real phone number? Tired of carrying multiple phones with multiple SIM cards? Tired of expensive GSM contracts and bills? Download SIMless SkyDuo, say goodbye to old fashion. One App, Multiple Real US/CA/UK phone numbers for your choice. • Cheap or Free International Calls & Texts Beyond free online video chats, wifi phone call & text to any mobile/landline phone numbers in over 200 countries and regions are provided at super low rates. Earn your daily free credits, then enjoy free wifi phone calls, free sms/mms, free txt now. • Fun Messaging Fun communication should be without limits! Express yourself with customized emoticons, stickers, GIFs, doodles on duo face, play games together while duo video chat, send pictures, voices, videos or locations messages. Camera shy? Make voice calls to anyone, any number in the world. • Private and Secure All calls are end-to-end encrypted. And messages are encrypted in-line with international security standards (TLS). Third parties can never access your messages. And SkyDuo does not store your messages. They will be deleted as soon as they are received by the recipient. Delete your account, without leaving a trace. Enjoy your safe and secure SkyDuo chat. • Low Data Usage Save 40-90% of the vowifi and voip network traffic in real-time calls. Especially on cellular networks, saving your data money a lot. • Is SkyDuo Really FREE ? Yes. Free to make video calls and messages. FREE to get credits everyday. Check-in, watch videos to earn free credits, play games to win free credits, complete various reward tasks to get free credits like making calls or sending texts. All paid premium services could be redeemed by free credits. It's totally free as you use it more. • Amazing Premium Features Upgrade to SkyDuo Premium, enjoy all exclusive features including private numbers, ad-free, call recording, monthly free credits bonus, 2x free daily credits tasks, better price of out call/text, special ringtones and themes, etc. Download the app and enjoy your SkyDuo life right now! Much More Goodies: - Add 2nd, 3rd line to your phone/tablet, turn your devices into real dual mobile phone. Alter the number at any time. Switch a number, switch a life! Deliveries, business, posting online, sales people, business partners, shopping online, selling items on Craigslist, Etsy, Ebay, never embarrassed. Level your living a next plus! - Note: If Push notification is not enabled, you may not receive messages and calls. 911 is not supported. If any area rates are too high, contact us. We will work on it. And you might win a support reward! Subscriptions are for premium, which can be purchased in-app and be renewed weekly, monthly or yearly on your choice. Payment will be charged to your iTunes account. Subscription automatically renews within 24-hours prior to the end of the current period, unless auto-renew is turned off at least 24 hours before that. You may manage your subscriptions and turn off auto-renewal by going to your iTunes Account Settings. No cancellation of the current subscription is allowed during active subscription. See More in Terms and Privacy Policy https://www.phoneduo.app/terms.html, https://www.phoneduo.app/privacy.html. We are excited to hear your feedback on the app! Contact Us: support@phoneduo.app

Screenshots

TalkLine3 screens
SkyDuo4 screens

Verdict

The call

The clearest difference is rating: SkyDuo at 4.7 against TalkLine's 1.0. SkyDuo also leads on ratings volume (2K vs 1) and review sentiment (78% vs 60%). TalkLine's advantage is in-app purchases (none vs 10) and iOS requirement (8.0 vs 12.0). 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. SkyDuo sells 10 in-app purchases, starting at $2.99 per 7 days. TalkLine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SkyDuo holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: SkyDuo has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of TalkLine's written reviews are positive against 78% of SkyDuo's.

UpkeepUpdate frequency

TalkLine ships an update weekly, SkyDuo every 11 days. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

Scorecard6 real differences · 4 level
TalkLine versus SkyDuo: the parameters behind the verdict, then further details
ParameterTalkLineSkyDuo
PriceFreeFree
Rating1.0 (1 ratings)4.7 (2K ratings) — better
Positive reviews60.0% of reviews77.8% of reviews — better
Number of ratings12K — better
Update frequencyWeekly — betterEvery 11 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.0
Further details — not scored
Size30 MB109 MB
Age rating4+12+
DeveloperICTCNingbo Juphoon System Software Co., Ltd.

Customer experience

TalkLine

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

SkyDuo

All ratings1,978 ratings
Positive92.8%
Neutral3.3%
Negative3.9%
Written reviews108 reviews
Positive77.8%
Neutral4.6%
Negative17.6%

Bugs and requests

TalkLine

Not enough reviews yet to summarise bugs or requests.

SkyDuo

Reported bugs

3 issues
  • App crashes, deletes itself, and doesn't work
  • Can't choose or change password
  • Payment issues, money deducted but no credit in app

Requested features

4 requests
  • Add group chat option
  • Allow texting with WiFi
  • Add more options like filters, screen sharing
  • Add ability to call two people on one call

In-app purchases

None

TalkLine

No in-app purchases

10 purchases

SkyDuo

Subscriptions8
  • Premium Lite Weekly$2.997 Days
  • US Number Plan Weekly$3.997 Days
  • 1 Line Unlimited Plan Monthly$4.991 Month
Show 5 more
  • US&CA Essential Plan Monthly$4.991 Month
  • US&CA Basic Plan Monthly$7.991 Month
  • US Number Plan Monthly$7.991 Month
  • Premium Monthly$9.991 Month
  • Premium Monthly1 Month trial$9.991 Month
One-time2
  • Dual Phone 10000 credits$1.99
  • Dual Phone 25000 credits$4.99

Questions

Is TalkLine free?
TalkLine is free to download, with no in-app purchases.
Is SkyDuo free?
SkyDuo is free to download, with in-app purchases available.
Which has better reviews, TalkLine or SkyDuo?
SkyDuo is rated higher. TalkLine averages 1.0 out of 5 from 1 ratings, while SkyDuo averages 4.7 from 2K ratings.
Do TalkLine or SkyDuo have ads?
Neither TalkLine nor SkyDuo shows ads.
Which is updated more often, TalkLine or SkyDuo?
TalkLine ships an update weekly, and SkyDuo every 11 days. Most recently, TalkLine was updated on November 2, 2026 and SkyDuo on November 11, 2026.

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