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. 2022 Mar 4;6(3):e33314. doi: 10.2196/33314

Table 2.

Top bigrams (N=3995) of respondents’ concerns with TraceTogether.

Bigram Occurrence, n (%) Example of response statement Sentiment score of example statement
TraceTogether app inconvenience

Battery drainage 489 (12.24) Bluetooth needs to be activated, which causes battery drainage and slows down the app. [Male, 57 years, September 2020] –0.25

Technical glitch 83 (2.08) Technical glitch. It malfunctions on my phone all the time and does not seem to capture any interactions that I made with the people around me. That is why I stopped utilizing it. [Female, 41 years, August 2020] –1.5

Phone battery 77 (1.93) Inconvenient. If [my] phone battery [goes] flat, it [TraceTogether] would not work anymore. [Female, 57 years, November 2020] –0.25

User unfriendly 22 (0.55) App is user unfriendly. [Female, 49 years, October 2020] –0.5

Bluetooth battery 22 (0.55) Bluetooth battery drainage. [Respondents aged 21-71 years, both sexes, all months] –0.25

Memory space 10 (0.25) Lack of phone memory storage space. [Female, 27 years, July 2020] –0.75

Phone memory 9 (0.23) Lack of phone memory storage space. [Female, 27 years, July 2020] –0.75

Language barrier 5 (0.13) Language barrier. [The] Interface is in English. The first page should especially be in mandarin as 70% of the population is Chinese and some may not understand [English]. [Male, 68 years, July 2020] –0.5
TraceTogether app and token data security

Privacy violation 386 (9.66) Data privacy violation. Even though they [the authorities] say they collect minimal data, you would not know if they changed it down the road since nobody reads the terms and conditions. [Male, 46 years, November 2020] –0.5

Data privacy 238 (5.96) Location data privacy violation. You do not want others to know some places you go to. [Female, 68 years, January 2021] –0.5

Dislike location 139 (3.48) Linked with location tracking and location tracing a

Location tracking 96 (2.40) Dislike location tracking. The app will track my location like an ankle collar on criminals. [Male, 54 years, December 2020] –1.5

Location tracing 53 (1.33) Dislike location tracing. Mistrust the government on data safety. [Female, 57 years, November 2020] –1.2

Data insecurity 81 (2.03) Lack of transparency on data usage, concerned about data insecurity. [Male, 29 years, July 2020] –2.1

Data leak 66 (1.65) Afraid of [data] being hacked and having data leak. [Male, 27 years, September 2020] –2.1

Data unprotected 9 (0.23) Data [are] unprotected. Dislike having to input IC [identification] number. Phone number should suffice. [Male, 68 years, September 2020] –1.8
TraceTogether app and token data misuse

PDPAb violation 152 (3.80) PDPA violation. Dislike that personal details have to be entered before you can utilize it. [Female, 42 years, December 2020] –1.5

Data breach 148 (3.70) Who is responsible if there is a data breach and how is the breach being handled? [Female, 50 years, July 2020] –0.5

Privacy invasion 41 (1.03) Privacy invasion. A sense that you are being stalked. [Male, 67 years, July 2020] –1.4

Jeopardize bank details 17 (0.43) Jeopardize bank and credit card details. [Respondents aged 26-67 years, both sexes, September 2020-February 2021] –0.5

Credit card details 16 (0.40) Jeopardize bank and credit card details. [Respondents aged 26-67 years, both sexes, September 2020-February 2021] –0.5

Personal information 18 (0.45) Privacy violation as there may be a personal information leak. [Female, 47 years, January 2021] –0.85

Information leak 12 (0.30) Privacy violation as there may be a personal information leak. [Female, 47 years, January 2021] –0.85








TraceTogether app and token efficiency and efficacy of contact tracing

Contact tracing 58 (1.45) Even with contact tracing we are unable to immediately know who is infected or if I met them, so it is inefficient. [Female, 40 years, February 2021] –1.35

TraceTogether inaccurate 6 (0.15) TraceTogether [is] inaccurate. It is pointless if I utilize and others do not. [Male, 50 years, October 2020] –1.5

Delayed notification 6 (0.15) The app notified me of possible exposure on the 14th, but I received delayed notification only on the 30th. [Male, 30 years, December 2020] –0.15
TraceTogether token design

Size cumbersome 35 (0.88) The token is badly designed, has a limited lifespan and its large size [is] cumbersome. [Male, 74 years, December 2020] –2

Token size 12 (0.30) Cumbersome token size and it is unaccepted at some stores. [Female, 51 years, December 2020] –0.5

aNot applicable.

bPDPA: Personal Data Protection Act.