Comparison

Speakingline vs DuelEng

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

Head to head
About

Speakingline

Features
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Speakingline is an English speaking application. With Speakingline, you can connect with native English Teachers from anywhere and at any time, 24/7, and start talking live and video. You can get your subscription by specifying the number of days and minutes of talk per week. Our instructor staff consists of people who are well-equipped in the field of Foreign Language Education and who have a high level of knowledge. After reviewing the trainer's curriculum vitae, you can determine which Instructor you want to see and start calling them immediately. You can study speaking, writing, reading or listening according to your own expectations and the areas you want to improve, you can study for exams such as Toefl, Ielts, Proficiency and improve your language proficiency. If you want to work with the same Instructor all the time, you can make an appointment in the Booking section for the appropriate days and times.

About

DuelEng

Features
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Learn English vocabulary with meanings in Turkish, German, Spanish or Russian. DuelEng combines short lessons, smart review and friendly competition in one clear learning path. Choose the language that supports you best, follow CEFR levels from A1 to C2, explore themed vocabulary packs and strengthen difficult words with mistake review. When you are ready, test yourself in ranked 1v1 matches or create private 1v1 and 2v2 rooms to play with friends. Key features: β€’ English vocabulary supported by Turkish, German, Spanish and Russian meanings β€’ One-minute vocabulary lessons β€’ CEFR paths from A1 to C2 β€’ Topic and skill-based learning packs β€’ Smart review for mistakes and challenging words β€’ Ranked 1v1 English duels β€’ Private 1v1 and 2v2 rooms with code or link invitations β€’ Daily quests, streaks, XP and badges β€’ Weekly leagues and progress tracking β€’ Friends and in-app chat Practice a little every day, keep your streak alive and turn new words into lasting knowledge. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Speakingline4 screens
DuelEng4 screens

Verdict

The call

The clearest difference is in-app purchases: Speakingline at none against DuelEng's 2. Speakingline also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.6). DuelEng's advantage is update cadence (every 8 days vs every 2 months). On price and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. DuelEng sells 2 in-app purchases, starting at $3.99 per month. Speakingline asks for nothing beyond the download.

UpkeepUpdate frequency

Speakingline ships an update every 2 months, DuelEng every 8 days. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard4 real differences Β· 2 level
Speakingline versus DuelEng: the parameters behind the verdict, then further details
ParameterSpeakinglineDuelEng
PriceFreeFree
Update frequencyEvery 2 monthsEvery 8 days β€” better
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS12.0 β€” better16.6
Further details β€” not scored
Size52 MB28 MB
Age rating4+12+
DeveloperSPEAKINGLINE LTDErdener YAVUZ

In-app purchases

None

Speakingline

No in-app purchases

2 purchases

DuelEng

Subscriptions2
  • DuelEng Premium Monthly$3.991 Month
  • DuelEng Premium Yearly$39.991 Year

Questions

Is Speakingline free?
Speakingline is free to download, with no in-app purchases.
Is DuelEng free?
DuelEng is free to download, with in-app purchases available.
Do Speakingline or DuelEng have ads?
DuelEng shows ads; Speakingline does not.
Which is updated more often, Speakingline or DuelEng?
Speakingline ships an update every 2 months, and DuelEng every 8 days. Most recently, Speakingline was updated on October 2, 2026 and DuelEng on October 9, 2026.

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