Comparison

FlightPlan! vs 语法分析助手

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

Head to head
About

FlightPlan!

Visually program and execute flight paths for your Tello drone. Control the drone manually or upload pre-designed flight plans. Monitor real-time telemetry data on a digital cockpit display.

Highlights
  • Visual flight plan programming
  • Upload flight plans to drone
  • Manual drone control
  • Real-time telemetry display
  • Glass cockpit interface
  • WiFi connection management
Features
Read full description

This app allows you to visually program a flight plan for the Tello Drone and then upload it to the drone for execution. You can also fly the drone manually with the app if you wish. Real time telemetry from the drone is displayed on the glass cockpit. Tello is a mini drone equipped with a HD camera that is manufactured by Ryze Robotics and includes a flight controller with DJI smarts. We access the Tello API by connecting to the airframe via a WiFi UDP port. Once a connection is in place, the drone is controlled using simple text commands. So before using the app, make sure that your Tello drone is on and the iPhone is connected to the Tello WiFi. You can check this by going to Settings -> WiFi. The first time that you use the app it will request your permission to use Location Services. This is required to allow the app to determine the SSID of the WiFi connection so we know when you are connected to the drone. The app doesn't use location services for anything else. The app has two modes of operation: manual and planning / auto pilot. The app status is shown in the top centre panel. This panel also indicates whether WiFi is connected or not. It may take a few seconds for a change in WiFi status to be displayed.  If you are connected to the Tello and in manual mode, then tapping the take off icon will cause the drone to auto take off and hover. Tapping land will auto land. Only tap emergency stop if necessary as it will immediately stop all four motors and the drone will fall out of the sky! Tapping the plan button toggles the app state between planning mode and manual mode. In planning mode a grid (representing the ground) and yellow arrow (representing the drone), will appear. The arrow direction indicates the front of the drone. In planning mode, you can enter the sequence of commands which will be transmitted to your drone for execution. Start with take off or you will receive a warning message. When you are finished with your flight plan tap land. The arrow will simulate the position of the drone but is not to scale. Tapping the upload icon will send your flight plan to the Tello and execute it. While the plan is being flown, the app will display the glass cockpit. Real time telemetry from the drone is displayed on the glass cockpit. This includes pitch, roll, yaw, velocity (x, y, z), temperature, time of flight (tof), height, battery percentage, motor on time, barometric pressure, and acceleration (x, y, z). A full description of how the app operates is provided at our website (reefwing.com.au). FlightPlan is a refined version of another that I described in an article called "Programming the Tello Drone using Swift." (https://medium.com/@reefwing/programming-the-tello-drone-using-swift-f9122fd4aeb8?). You can refer to this article to understand how the app operates and create your own version.

About

语法分析助手

Features
Read full description

语法分析、英汉词对齐、音标连读及不同口音朗读。包括以下几个主要功能: 【语法功能】 可查看句子语法的图解形式,能高亮出句子成分对应的中文,有助于理解句子、短语和单词的意义。 【拍照上传】 可拍照上传英文,查询词典,也可以用语法分析和翻译,方便学习更多的内容。 【单词音标】 可查看单词中各字母对应的音标,进一步了解单词的发音规则。 【精听和口语评测】 可查看句子的音标和连读,用于精听名词、动词、形容词和副词。 【辅助功能】 支持做笔记、收藏、生词本。

Screenshots

FlightPlan!4 screens
语法分析助手4 screens

Verdict

The call

The clearest difference is review sentiment: 语法分析助手 at 100% against FlightPlan!'s 20%. 语法分析助手 also leads on rating (5.0 vs 1.0). FlightPlan!'s advantage is in-app purchases (none vs 11) and iOS requirement (12.2 vs 15.5). On price, ratings volume, 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. 语法分析助手 sells 11 one-off in-app purchases. FlightPlan! asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

语法分析助手 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 20% of FlightPlan!'s written reviews are positive against 100% of 语法分析助手's.

Scorecard4 real differences · 6 level
FlightPlan! versus 语法分析助手: the parameters behind the verdict, then further details
ParameterFlightPlan!语法分析助手
PriceFreeFree
Rating1.0 (4 ratings)5.0 (3 ratings) — better
Positive reviews20.0% of reviews100.0% of reviews — better
Number of ratings4 — better3
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better15.5
Further details — not scored
Size7 MB181 MB
Age rating4+4+
DeveloperReefwing Software北京字词句科技有限公司

Customer experience

FlightPlan!

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

语法分析助手

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FlightPlan!

No in-app purchases

11 purchases

语法分析助手

One-time11
  • 1万字符豆$0.99
  • 10,000 Bean$0.99
  • 1个月会员$1.99
Show 8 more
  • 3个月会员$2.99
  • 6个月会员$3.99
  • One Month VIP$3.99
  • 1 年会员$6.99
  • 3 年会员$14.99
  • One Year VIP$19.99
  • 永久会员$24.99
  • Three Years VIP$39.99

Questions

Is FlightPlan! free?
FlightPlan! is free to download, with no in-app purchases.
Is 语法分析助手 free?
语法分析助手 is free to download, with in-app purchases available.
Which has better reviews, FlightPlan! or 语法分析助手?
语法分析助手 is rated higher. FlightPlan! averages 1.0 out of 5 from 4 ratings, while 语法分析助手 averages 5.0 from 3 ratings.
Do FlightPlan! or 语法分析助手 have ads?
Neither FlightPlan! nor 语法分析助手 shows ads.

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